As to depth, they have Jordan Poole who has been great at times but there isn't anyone else on their bench that concerns me. Otto Porter has a bad foot and isn't all that good at this point anyway, Iguodala hasn't played much and is 38 years old, and then they have Nemanja Bjelica who I am not that worried about.
To counter this we have White, Grant, Pritchard, and Theis.
Different depth players tend to come up big at different points of the series. I have as much faith in White, Grant, and Pritchard as I would expect from Poole, Porter, or Bjelica. Poole has had some huge games in the playoffs, no doubt but I think we can contain him. I don't expect Porter or Bjelica to go off and win a game for them.
Just for comparison, Porter's best playoff game was 13 points vs. Memphis in a blowout. Grant Williams had 27 in game 7 against MIL. Porter has been more consistent but I am not worried that he is going to go off. Pritchard has had 6 double figure games in the postseason including 18 in Game 1 vs. Miami. And White just keeps doing his thing. Not sure if we will see Theis much but if needed, he can still be fine.
I see Pritchard playing more of a role vs. GSW than he did against MIA. Not every game of course but I envision him getting shots. I also envision Grant having a game or 2 where he strings together some corner 3s to impact a game. Poole and White need to contribute every game. Both teams need these two to play like starters.