I think with football, did we not have some good assistants from 2002-04 that left for other jobs? Bielema, etc? I admit I don't follow the assistants as close, particularly in football. That recruited some of the talent we had on the 2002 team, etc. I do seem to recall also that the 2005 class was actually pretty highly rated so the previous years seemd to help for sure. Seemed there were some recruits in that class that didn't pan out, were head cases or whatever.. But there were also some guys like Tony Moeaki that hung around and made a pretty good impact in 2008 (or 09?).
But I generally agree that unless you're cheating, it takes more time for a program like Iowa to build a rep and start reeling in better recruits as a rule. People probably get sick of the Wisconsin comparisons, but they were really, really solid for years under Bo Ryan, but towards the end of his tenure, they were becoming more elite. That team with Frank Kaminsky, etc. - I thought those guys were gonna win it all. Lost to Duke in the title game but had a lead mid-way second half. They also beat that undefeated UK team. I'm not sure if their recruiting had picked up leading up to that, but it seemed obvious that program was gaining momentum. Didn't happen overnight, though. They had to be a Sweet 16 type program for a while first.
It makes me lament the meltdowns in certain years under Fran. Some real missed opportunities to make a splash if the team had finished decent and had a higher seed those years.