As far as I am concerned there will be plenty of opportunities for any or all of the newcomers to contribute. Sometimes you just never know who will be able to make the jump & who will need some seasoning.
I think the linchpin in this whole thing will be Joseph. If he can make the jump & get the job done at PG that will define the rolls that others play. If Joseph doesn't make that jump then G will get most of the minutes @ PG & that will open up opportunities up front for Lydon & Diagne. I don't see Jimmy letting Joseph get as many minutes as he got last season wo big improvement in his play.
So here is my take in a nutshell:
C - If healthy, DC2 starts, but he will probably be only good for 25 to 30 minutes a game. That leaves Diagne battling Obokoh for the backup 10 to 15 minutes per game. I think Diagne wins that battle.
PF - Roberson easily & getting big minutes. Probably Diagne & Lydon battling for the backup minutes. Ideally, Diagne get his as the backup C & that leaves some time for Lydon to give us another trey threat on the floor.
SF - As mentioned above, Joseph is the linchpin. I am going to assume Joseph improves enough to be the primary PG, which will leave G getting the big minutes at SF. Backup minutes could go to Lydon or to Richardson if Jimmy goes small. I would say Lydon due to his size at the back of the Zone will be the favorite for these backup minutes.
SG - Well, obviously Trevor starts. I hope Jimmy doesn't run him into the ground again & that Malachi can get his 10 or so mpg as the backup 2G
PG - Team really needs Joseph to improve to at least adequate. If not G has to move to the backcourt, which would probably leave us hurting upfront. Howard is transitioning to the point, so it is really hard to see him not needing an adjustment year, but one never knows for sure. Hopefully, he can play just well enough to be the backup for Kaleb.
The good news is that several guys might be able to be multi-positional. G can play the 1,2, or 3. Diagne might be able to play 4 or 5. lydon probably can play the 3 or the 4. Maybe richardson can swing between the 2 & the 3.
In the end, improvement often comes from those who are already here. Can Joseph step up ? Can DC2 stay healthy & play up to his potential ? Can Roberson be a star ? Does G or Trevor have another level?
Many, many questions. This will be a team with potential, but in the end if DC2 and/or Joseph can't get the job done we will probably be quite mediocre.