That's a risk you take.
Even if Cousins doesn't pan out, his trade value is still high, and any team would throw a max deal at him if they feel he can contribute to their contention.
I hope DA trades PP/Jordan for Josh Smith with some trade exceptions, so we can get cap space. Then try to trade Sullinger/ our draft picks, and Bradley for Cousins.
Rondo/Shooter/Green/Smith/Cousins.
Yet again, I'll say one more time. Doesn't that seem like a contender in a year? If we pick him up, I don't see why that wouldn't pique the interest of a coach who'd love to become a championship coach in a year or two. Rondo at 30 is still better than the top 15 point guards in the league.