What I heard at the time was that Tacy didn't get along with the players too well. Kenny Green would not stay if Tacy was there, and Tacy would not stay unless Kenny Green stayed. Both left Wake at the same time, and the Staak years followed.
Staak may be the most snake-bit coach of all time. The guy could not catch a break. Star player got homesick and transferred. Stud recruits get season ending knee injuries (Keys, Siler). There were times after bball practice, you would see more guys on crutches than able-bodied. Lost to State in the final seconds in identical situations (2 pt lead, 3 secs left) by 3 pointer, and after intentional foul (made one, missed one, got rebound put-back ftw). The damn rebound gripped the inside of the rim and swung out at a 90 degree angle from the foul shooter, and fell into a boxed-out State player's hands (Rodney Monroe, I believe) for baseline bunny. Bob should have appeared on Hee Haw to sing "Gloom, Despair, and Agony on Me," especially for the part "if it weren't for bad luck, I'd have no luck at all." Yeah, Staak drank. We all would have. And did.
Best thing Staak did was recruit Chris King, who discovered some displaced swimmer while playing pick-up in the V.I. Staak was gone by then and Odom benefited.