Great question.
I would do quite a few things differently. I know the pressure is on Groce, but he can't lose. I would see how unknown players would do. The first thing I would do is try and get more athletic more often. In addition, the pattern substitution is atrocious.
Offensively, we need more ball-movement. Our offense is based around post-ups from Maverick, or setting a screen for Malcolm and watching him go one-on-one. If using a screener, we need more players with a purpose. Should we screen a little lower so Maverick and/or Leron are not setting screens above the three point line when neither really slash to the basket and neither are great 3 point threats. In addition, as much as I love Tracy, either his legs or shot right now, or he is just purely slumping. However, he is stumbling all over the court for real and mistakes are happening from trying to do too much. He needs to come off the bench for 10-15 unless he gets into a groove. Same with Mike Thorne (he is too slow). Tate, obviously needs to be benched.
For our other players, it is hard for them to get into a groove, if the only players offensively are Morgan/Hill and they are not great defenders.
I would completely turn the reign over to Te'Jon. The ball moves great with him. I would start Te'Jon and have Hill be the back-up (yes, I said it). I would also start Kipper to set a defensive tone over Black. With this line-up, I would push the ball more. I would have Hill be the mis-match by either posting him up (his strength) or be the screener when Te'Jon is handling. The defender on Te'Jon either gets placed on Hill (shorter) or gets behind Te'jon. I have Kipper slashing to the middle. I have JCL running around off of screens opposite side. In addition, you can have Morgan either getting to mid-range or post-up when needed. However, this line-up is still not great defensively and I honestly would play Morgan less. He is too big of a liability defensively.
Te'Jon
Lands
Hill
Kipper
Morgan
Then I would run a line-up of this
Hill
Jordan
DJW
Black
Finke
I would give extended minutes to Jordan and DJW to see what they have. I think if you give Jordan some minutes, you might see more confidence and see what he can do. With this group, we should be much better defensively, have a great threat in Hill offensively, have shooters in Jordan/Finke, and I feel you can press. Hill can either post-up a smaller player or pick-and-pop Finke all day long with Jordan getting picks from Black. Also, when Hill is posting-up, have Finke on same side as 3 point threat as a big guy can't stay with Finke. I would also press when Hill is out to speed up tempo and leave it in Te'Jon's hands.
These two line-ups guarantee less slow-starts. Then the second unit bring energy, athleticism, and versatility. Wings with a skilled big guy in Finke. The wings will mask some of Finke's defensive weaknesses also.
Groce has no identity is the problem. His offense is predicated on the same 2 guys setting a screen for Hill above the 3 point line or Morgan posting up and others standing still. Defensively, the starting line-up is atrocious with not one tone-setter. Kipper can be that (while still young/raw). Black is a tough guy, but makes too many questionable decisions to start with this group (with a better group, he is a great complimentary piece). Then Groce panics and just subs a player every 2 minutes and there is not continuity.
I like Groce as a person and as an assistant.