I'm not here to suggest that Kirk Ferentz, who turns 59 on Aug. 1, is ready to step aside anytime soon as Iowa's coach. But I will tell you that his likely replacement is already on staff. Brian Ferentz, Kirk's son, is entering his third season as a Hawkeyes assistant, and from all appearances, the groundwork is being put into place for one of these coach-in-waiting deals. Brian is 31, and in four or five years when Pops decides he has had enough, the youngster will slide over and settle into the big chair.