I gave you my best advice. Others have as well. It won't change what actually happened this season, but could help you moving forward. Neither of the freshman centers you landed would be in the "stud" category, even if they're blue on Ath, IMO. When I was at D2 FHSU, I always tried to land one stud freshman every season, that I thought could develop into a great player at his position. That's where about half my budget was spent. Another portion, I'd use on a local guy with potential. And, after signings, I'd run a search for ath/def and see what popped nation-wide. I'd then FSS the relevant states, and see if any of those undecided were worth a roster spot.
Of course, YMMV, or you may just choose to go a different route.