Yup, I agree 100% he's got an upside but we don't know how much of one he has. Brock could have a better style just after Ruiz has been beaten from television this is the last thing we wanted to see.

Wlad would destroy him
Valuev would lose to him
Rahman vs Brock is 50/50
Brewster-Lyahkovich vs Brock is also 50/50 though he has a better shot vs Serguei