The talk is mostly a "wished we had a star RB by now." But it's a tad unrealsitc at this point. You can't just look at the # of years and make a blanket statement.
When Held arrived he took Ozigbo from deep in the running back depth chart to a 1,000 yard rusher and he made it onto an NFl roster. A bad coach isn't going to be able to do that.
He had Washington that showed signs of being an electric player but we all know what took place there.
When he was at UCF he took some kid out of Miami that was about 5'7''' with sprinter spead and was one of the major players for their undefeated season.
He has recruited pretty good talent to the RB room at Nebraska and now it is time to start getting results from those that he has recruited. You can't expect every RB recruit to pan out. Not even WI gets all of their RB recruits to pan out. If one of the running backs gets past 700 yards this season then we have something starting to develop. Would be ideal if one of them can get to a 1,000 yard season. For all we know Morrison will come out as one of the two feature backs.
You just have to be patient and see how things unfold the next two seasons for the RB room. I'd be willing to put money on the table that one of the RB's currently in the running back room makes it to the NFL.