OU will always need better players for the next season. Having said this, MS fielded his own recruits/players yesterday. They fell short, but I enjoyed the season this year. I enjoyed watching a new offense, it was a very good season for OU.
I will also add that Mike's D also improved a great deal this year when fielding all of his own recruits.
We were not as poor defensively than many seem to think, especially when looking at it when equalized per number of plays(these ranking do include all bowl games concluded through yesterday):
Year________________
2015________
2014
Total Defense__________39__________51
Pass Defense__________34_________117
Pass Eff Defense_______10__________55
Rush Defense__________53___________8
Rush yds/carry Def_____33___________4
Scoring Defense________28__________55
3rd Down Conv D_______78__________47
Red Zone Defense______32__________53
Are this year's rankings acceptable? No, but there has been a significant improvement and I hope that continues. And I cannot access the per/play rankings, but they make the Defense look even better this year.