Brad Stevens thinks the Boston Celtics need to be tougher.
Boston were expected to be one of the best teams in the NBA entering the season, but they have registered just a 9-7 record so far in 2018-19.
Stevens, the sixth-year Celtics coach, discussed his team's early struggles with reporters after a 12-point loss to the Utah Jazz on Saturday.
"I think there's a lot of things that it could be, but at the end of the day, you know, you build confidence through doing hard things over and over and over, because that's your focus," Stevens said (via NBC Sports Boston). "That's your intent. Your job is your focus. You know what you're supposed to do.
"We have to build a tougher team mindset than we have. I mean, we just don't have that mindset yet that we need."
The Celtics had won back-to-back games over the Chicago Bulls and Toronto Raptors before falling to Utah at home.
Boston forward Gordon Hayward said the team have to find ways to be good every game.
"I felt like, we found a way to win [Friday] night [against Toronto]," Hayward said. "It was an emotional win for us. Great teams bring it the next night. So, we have to be better."
Hayward has averaged 10.1 points and 5.3 rebounds in 26.7 minutes per game in 2018-19 as he continues to recover from a broken ankle that cost him almost all of last season.
The Celtics will return to the court when they face the Charlotte Hornets on Monday.
|Best player in the NBA? Leonard focused on Raptors´ success|
|Manchester United 2 Bayern Munich 1 (1998-99) - Where are they 20 years on?|
|Manchester United 1998-99: The best wins of Ferguson´s treble from Turin to Barcelona|
|Yankees sweep double-header, remain atop AL East|
|Tuchel´s PSG extension - Opta numbers help to explain new deal|
|Herring beats Ito to claim WBO super-featherweight title|
|Three takeaways from Raptors´ historic win over Bucks|
|Raptors defeat Bucks to earn first ever Finals berth|
|MLS Review: Rooney salvages draw for DC, Union beaten|
|Liverpool want to emulate Man City dominance – Henderson|
|Marcelino revels in ´happiest day´ after Copa del Rey success|
|Kovac praises Bayern turnaround after completing double|
|Red Sox´s Devers robbed of home run by Minute Maid Park girder|
|Warriors´ Iguodala considering retirement|
|Na leads at Colonial, Spieth two shots back|
|Valverde vows to fight on at Barcelona|
|I can be one of the best in the world - Zverev defiant after return to winning ways|
|Finland to face Canada in final after downing Russia|
|Valverde not to blame for Barcelona´s Copa defeat, says president Bartomeu|
|Rummenigge reaffirms Bayern Munich´s Kovac stance after DFB-Pokal triumph|
|Barcelona season bittersweet after Copa loss, says Pique|
|Ribery proud after making victorious Bayern Munich farewell|
|Centurion Smith unfazed by England boos|
|Warrington battle past Wigan as Giants humiliate Hull|
|Barcelona 1 Valencia 2: Valverde pressure increases as Catalans denied historic Copa win|
|Leinster retain Pro14 title to spoil Hogg farewell|
|F1 Raceweek: Hamilton hopes rain will not scupper likely Monaco glory|
|Bayern Munich 3 RB Leipzig 0: Lewandowski´s brace helps secure domestic double|
|Crusaders march on as Sharks enjoy derby delight|
|Champions League failure would be ´huge disappointment´ for Atalanta - Gasperini|
|Lennon offered full-time Celtic job after treble-treble|
|Paris Saint-Germain must pull together in one direction to improve - Tuchel|
|Toulon end Castres´ reign, La Rochelle and Montpellier seal play-off spots|
|Coutinho, Semedo & Arthur start Copa del Rey final after injury problems|
|Yastremska shrugs off Garcia to claim maiden clay title|
|Gasly handed Monaco grid penalty|
|Without him, I would have one title – Hamilton dedicates Monaco pole to Lauda|
|Neymar, Mbappe and how to help Kimpembe: Tuchel´s Paris Saint-Germain to-do list|
|Outgoing Ribery and Robben on Bayern bench as Neuer starts DFB-Pokal final|
|Carapaz takes Maglia Rosa after climbing to stage 14 win|
|Injured Keita named in Guinea´s provisional AFCON squad|
|Wiesberger leads at Made in Denmark after Schwab struggles|
|Edouard brace fires Celtic to historic treble-treble|
|Paire picks off Auger Aliassime in Lyon final|
|Leclerc demands Ferrari answers and prays for rain after Monaco farce|
|Putintseva claims first WTA title at Nuremberg Cup|
|Gattuso: Champions League not imperative for Milan job prospects|
|Mancini confident of taking Italy into a new era|
|Experience will serve Inter well in ´cup final´ - Spalletti|
|Hamilton beats out Bottas as Leclerc suffers Monaco nightmare|
|Reynolds hurt but Rabbitohs still too strong for Wests Tigers|
|Ronaldo rested before Allegri heads for the beach|
|Nagelsmann can establish Leipzig at the top - Rangnick|
|Europa League win would cap ´dream´ Chelsea season, says Emerson|
|Rebels have cause to celebrate, Waratahs hurt by Jaguares|
|Tuchel extends PSG contract to 2021|
|Marquinhos ´didn´t understand´ Mbappe´s PSG exit hint|
|Van Dijk out to improve on ´nuts´ Barca clash in Champions League final|
|Wood worry for England ahead of World Cup|
|Kompany takes Manchester City academy coach to Anderlecht|
|Terry will manage Chelsea before Lampard does, says Wise|
|Keary blow for Blues ahead of Origin opener in Brisbane|
|French Open 2019: Is clay king Nadal finally vulnerable at Roland Garros?|
|French Open 2019: Unburdened Federer has a free hit on Roland Garros return|
|Yelich first to 20 homers, Diamondbacks score 18 runs|
|Bucks won´t overuse Giannis in pursuit of NBA Finals – Budenholzer|
|MLS Review: LAFC roll on with Impact win, Galaxy end skid|
|Tabarez confident Suarez will be fit for Copa America|
|Ranieri to pay fine if De Rossi wears special armband in Roma farewell|
|Blue Jays team-mates Biggio and Guerrero make MLB history|