Your primary concern needs to be drug testing. If you go on, I would recomend test suspension and masterone, and possibly anadrol or dbol in the summer when you think you are not going to be tested.
Your inseason stack should probably just be suspension, and masterone, sicne drostelone will not show up on many steroid tests, unless they specifically test for DHT, along with insulin. My cousin played as an defensive tackle and his stacks looked something this through college (don't know what he used once he was drafted)
100-150 mg of test suspension twice a day
150-200 mg of anadrol a day
20 iu's of humalin-r post workout
4-6 iu's of hgh ed
However you have a great deal of research to do before you use any gear, especially since you are a tested athelete.