That's the point. If Mumford stays White will continue to be under-valued. He's worth a lot more to a rival club then he is to Sydney.
My point was, he should be, but a lot of clubs will be weary to pay us adequate compensation. (FTR, I think a 2nd round pick is fair for him)
I think you'll get a very early second rounder, a late first rounder wouldn't be too much to ask either. He's an in form big man and he'll have numerous clubs after him so you'll have a bidding war of sorts.