Given the timing of the offer to Rolf and the decision by Okani leads me to believe these two events are likely to be related. The coaching staff probably knows who is staying and who is leaving and they likely feel that there will be possibly another departure (maybe Ayers?) and is looking for depth at a position that many need some reinforcement.
Plus, it is increasingly obvious in watching the conference tournament that 3-pt shooting is at a premium. Just look at Virginia Tech for example who beat Duke and North Carolina convincingly in their run, they had two big, strong bigs surrounded by 3-pt. shooters.
The game is changing to a more free-flowing offense where the ability to knock down 3's is just as important as having a 6-10 monster in the paint. In fact in today's game, if you can't hit 3s then defenses just collapse in the paint and take away the post entry pass and shut down the offense. See Pitt as an example of how a very good post player gets neutralized by the inability to shoot the ball with accuracy.
Agree on the need to get bigger because you cant' teach size. We are already going after big guys, having landed Dixon, and potentially being the leader for Halil Barre, plus the offers to the kid from Sweden and Cooper from IMG in Florida, both of whom are 6-10.
One thing is for sure, it's going to be an interesting off-season.