I've said it before and I'm gonna say it again: I think everyone will be surprised come draft day at how many of these players get drafted. Talent was never the issue this year. Don't be surprised if we have 2 LB's get drafted.
My friend, lack of talent was an issue --- the bad coaching was also an issue. Ruud played smart and was around the ball fairly often and actually did well with what he had. But, he has no better than 4.7 - 4.75 speed --- or at least his football speed is like that of a 4.75 type track 40 player. He is way, way, way too slow to be an OLB. He is too small, not physical enough and also too slow for an NFL MLB. His speed would only be modestly impressive if he were a 275 pound defensive end --- and most defensive ends in the NFL are sub 4.7 speed as well. He has no chance whatsoever in the NFL.
McKeon is also too slow for an OLB and nowhere near big or physical enough for an NFL MLB. He too has no chance.
Octavian has a shot because he is 250 pounds and benches 500 pounds, plus, while being too slow for an OLB in the NFL (he has ca. 4.6 - 4.62ish speed), he might be fine given his size, strength and speed for a MLB. He is tough, plays aggressive football and can be physical. He however does not play execution football well --- he is out of position and does not execute his assignment well far too often. Coverage for him is a major problem. But he has tools and may get a shot because of his physical measurables and may be on someones radar as a project player.
I really think that NU fans have over estimated the talent level of the team. It was not all bad coaching --- though the coaching was bad --- the talent just was not there. The talent on the squad, if coached well and they played with heart might be on this years schedule closer to 8 - 4 or 7 -5. Decent, not worthy of ranking but better than 5-7 and generally competitive.
Even with good coaching next year, unless the younger players are far more athletic (and they may be) than are the ones NU is replacing, then overall team strength and speed will be well behind that of Oklahoma and Texas, somewhat behind Missouri (yes, admit it MU is bigger, faters and quicker than is NU) and +/- very little from TT, OSU, T A&M, and Kansas.