Give it a rest....
What is the point of this thread? If we have recent 3rd/4th round picks in there like Gawn, Fitzpatrick, Jetta etc., then there should be another 10-12 guys overtaking them in the next five years with earlier picks. It's too early to judge these players, they're not automatically stars because we drafted them at the same time as Scully et al.
Warnock and Rivers would be >30, and probably too slow and injured to still be holding down a spot in the backline.