Highly possible. Black, Finke, Thorne, and Morgan will all play a lot. We've got the ability this year to play numerous combinations at the 4/5 based on matchups and hot hands:
Black - 6'7, 230, PF, super high motor, excellent rebounder, good athlete, great rebounding instincts, respectable mid-range jumper
Finke - 6'10, 230, PF/C, skilled face-up big with plus-level shooting, ball handling, and passing ability. Terrific size at the 4.
Morgan - 6'10, 240, C/PF?, good size, big body, great mid-range shooter, decent post scorer
Thorne, Jr - 6'11, 280, C, NBA size and run/jump athleticism, good post scorer, very good rebounder, health-based conditioning limitations
The only concern is that none of these guys are true rim protectors and all except Black are probably a little below average in terms of agility and lateral quickness (though none are stiffs, either). The rebounding boost we should get from Thorne and Black will mostly shore up last year's defensive issues, but teams with athletic, skilled bigs like Purdue, IU, and Wisconsin could still give us headaches in the paint.