I agree. You don't have 3 players playing off the bench. It's a 5 person team sport. If you got Murray then you'd probably need to give up Burks, so this is a line up that could work:
Exum
Murray
Hayward
Lyles
Favors
then
Mack
Murray
Hood
Lyles
Gobert
See, we can make this work.
That's a bit rudimentary.
I'd go...
Exum, Hood, Hayward, Favors, Gobert for first 6 minutes.
Sub out Favors at the 6:00 mark.
Exum, Hood, Hayward, Lyles, Gobert for the next 3 minutes.
Sub out Hood at the 3:00 mark.
Exum, Murray, Hayward, Lyles, Gobert.
Sub out Exum, Hayward, Gobert at end of 1st.
Play Mack, Murray, Ingles, Lyles, Withey til the 9:30 mark.
Sub Favors in for Withey at the 9:30 mark.
Mack, Murray, Ingles, Lyles, Favors
Sub out Ingles at the 7:00 mark for Hood.
Run with Mack, Murray, Hood, Lyles, Favors til the 5:00 mark.
Bring in starters for last 5:00 of half. Or something like that.
Exum, Hayward and Gobert would get 34 minutes per that way. Hood would get 32. Favors would get 31. Lyles would get 26 minutes. Murray would get 20 minutes. Mack would get 14 minutes. Ingles would get 10 minutes. Withey would get 5 minutes.