The reason we are not an instant contender is pretty simple. The kind of talent we have doesn't fit the kind of scheme that our coaches are comfortable coaching. You can say what you want but it's very hard for a group of coaches that are extremely well versed in the pro style type offense to take over a program with a QB that is far from what they are accustomed too, and an OL with about as much quality depth as Arkansas State and be able to turn that into a prolific offense. And in all honesty they have done a decent job.
Then there is the defense, one that lost 2 NFL caliber DT's and the kids that Bo recruited do not fit what this staff wants to do on defense. And it showed against OSU. Bo recruited kids that fit his system, a system that was very effective against traditional pocket passers but struggled mightily against mobile QB's and any kind of run game.
HCMR and staff has so far been the better at recruiting what seems to be a higher caliber of talent and it will take some time to get his recruits in order and on the field. Once he does we should have a very quality program but it usually takes 4-5 years before that happens. Coaches like Harbaugh, Meyer, Saban, and Fisher are the exception not the rule. Be glad we didn't hire the likes of Will Muschamp.