To further Dawgg's point, in addition to stopping the run, the Defense needs to provide more consistent pressure on the QB, especially on 3rd down. (We didn't see too much of that last year). Schoebel is as solid as they come at RDE, but it is time for Kelsay or Denney to really step up on the other side.
I can't say that I expect much out of Takeo this year. While he is a warrior, an Achillies injury is not like an ACL, which might take 12 to 18 months to fully recover. Some players never regain their prior form, but here is hoping that he does.
I think that the key to your statement is that we look good on paper. Every team looks good on paper. Every team looks good in shorts at mini camp.
A big part of the teams success next year will depend on how quickly they are able to adjust to both a new offensive and a new defensive system. (of course everyone on this board has a different definition of success.)