England's players need more protection from the Rugby Football Union (RFU) if they are to challenge the top sides at the World Cup next year, says Lewis Moody.
Eddie Jones' team saw their Six Nations hopes crumble against Scotland in February and they have failed to get back to winning ways since.
Successive defeats on tour in South Africa mean England have lost five straight Tests and face a potential series whitewash against the Springboks in Cape Town on Saturday.
A surprise loss of form has brought criticism of Jones and his players, however Moody believes questions should instead be asked of the RFU.
"I don't think a huge amount has changed [within the England squad]," Moody told Omnisport, speaking on behalf of Land Rover.
"With the amount of workload that is being dumped on international players over the last two years, to then go on tour to South Africa was always going to be a huge ask.
"When you have Lions tour, World Cups, and the club season proliferated with internationals you have successful sides playing a lot of games.
"Invariably the large number of players come from those successful sides so you get a lot of players playing a huge number of games, which is why you only see one England international who is a centurion.
"Whereas you go to South Africa and there are six or eight, you go to Australia or New Zealand and God knows how many they have got, and Ireland seem the same.
"They manage their players to perform on the international stage, whereas the club game demands so much of our players that most of them make it to be fit enough to play on the international stage.
"I think it is important to manage players and not expect them to do so much. If we want to see our best team out there we have to manage our players better."
Moody hopes the calendar can be made less congested in the future to enable the best players to star in the big games.
"I know World Rugby are looking at bringing in an international season, which for me would make so much difference because you get away from players being put through the mill with their clubs," he added.
"The amount of workload a player has to get through is huge.
"That international season where you could have club/domestic seasons, then the European window and then have an international season like New Zealand and the southern hemisphere sides do would be enormous for player welfare in the northern hemisphere.
"But that could take some time. Whether they could ever get to a place where they could move the Six Nations, I can't see that happening, but I hope they do because it would make so much sense.
"All we want to do is see our best players on the pitch week in week out, and if managing the season is the way to do that, then do it!"
Lewis Moody is a Land Rover ambassador. Land Rover has a heritage in rugby at all levels; from grassroots to elite. Follow @LandRoverRugby
|Ronaldo right about Juventus team spirit – Allegri|
|Klopp: I´m not the pope of football tactics|
|Stade beat Ospreys on emotional Chauvin tribute night|
|Ligue 1 survival bid a marathon not a sprint for Monaco, as club appoints distance runner|
|Vertonghen eyeing Spurs future beyond 2020|
|De Bruyne injuries could be a blessing for City, says Guardiola|
|Emery prepared to face Arsenal´s centre-back crisis|
|Ulster complete Scarlets double, Exeter gain Gloucester revenge|
|Sheffield United 1 West Brom 2: Baggies comeback boosts automatic promotion push|
|Del Potro back on court following knee injury|
|Canelo v Fielding: Rocky ready to write his own fairytale in New York|
|Boca part company with Schelotto after Copa Libertadores loss to River|
|Canelo v Fielding: Tale of the tape|
|Juventus defender Cancelo has knee surgery|
|Canelo v Fielding: Alvarez and Rocky make weight in New York|
|Spalletti does not fear another mid-season crisis at Inter|
|Salah headlines CAF Player of the Year shortlist as Koulibaly misses out|
|Beckham Jr. out of Titans clash|
|Lipsky hits the front at Leopard Creek|
|Pederson coy over Wentz back injury|
|Liverpool ´not really likely´ to be active in January window, reveals Klopp|
|Always on the move and unpredictable - Pavard reveals surprising choice over toughest opponent|
|We need to get back to respect - Lampard alarmed by hate in football|
|Giles returns to England to replace Strauss as director|
|Hansen has no issue with Milner-Skudder Toulon switch|
|Juventus to rest Ronaldo after Torino showdown|
|Titmus strikes gold again as world records tumble in Hangzhou|
|Malinga to captain Sri Lanka in New Zealand|
|Rivaldo would like ´excellent´ Isco at Barcelona|
|United a long way from Mourinho´s vision|
|´Klopp denies an answer!´ - Liverpool boss dismisses questions about ´world-class´ Pogba|
|Returning Nowitzki ´so tired´ after making NBA history|
|Aguero and De Bruyne in contention for Manchester City v Everton|
|Simeone has no plans to cash in on Costa|
|Canelo v Fielding: Alvarez´s greatest nights|
|Fabregas: Chelsea being unfairly scapegoated over racism allegations|
|Crisis? What crisis? Klopp focuses on defensive solutions for United clash|
|Hope cannot inspire Windies as Bangladesh cruise to series win|
|Benitez picks up Premier League Manager of the Month award|
|Chavez, Marquez and Canelo - Mexico´s greatest multi-weight world champions|
|Bale set to miss Real Madrid v Rayo Vallecano|
|Robben out until January as Bayern look to avoid serious injury|
|Milan avoid UEFA ban in FFP punishments.|
|Mourinho compares Liverpool to ´an amazing house´ but insists trophies matter|
|Brisbane Roar 2 Melbourne Victory 4: Muscat´s men hit A-League summit|
|Bumrah confident second Test is ´in the balance´ after India recovery|
|Isco gesture was for a corner or foul, claims Solari|
|Harris leads Australia into ascendancy on day one|
|ATP announces candidates to host future Finals|
|Ronaldo: Juventus fans refuse to lose to Torino|
|Hero Rivers feared he had cost Chargers in KC|
|Williams would welcome Llorente back to Athletic Bilbao|
|Liverpool v Manchester United: Minding the gap|
|Milan elimination unjust, fumes Leonardo|
|Paul hails ´sick´ Harden after record-breaking display|
|Liverpool v Manchester United: Salah, Mane and Firmino v Rashford, Martial and Lukaku in Opta number|
|Canelo open to GGG trilogy as he chases place in Mexican history|
|The big Friday Premier League quiz|
|Harden posts record fourth 50-point triple-double in win over Lakers|
|Barcelona squad happy with Dembele, says Alba|
|Chargers rally past Chiefs to clinch playoff spot|
|WATCH: Chargers top Chiefs on dramatic two-point conversion in final seconds|
|Suns owner Sarver committed to keeping team in Phoenix|
|Chargers WR Allen leaves with injury after near-spectacular catch|
|Socceroos not giving up on Mooy for Asian Cup|
|Cooper says Raiders owner wanted to trade him to Cowboys|
|Pochettino jokes Levy is ´worried´ about losing him|
|Barcelona would welcome Morata – Alba|
|Toure not a priority for West Ham – Pellegrini|
|Koscielny no certainty to face Southampton, says Emery|