I don't use any absolute minimums during recruiting.
I try to avoid certain numbers but if a player has enough potential in other areas I'll take a terrible rating and try to work with it. And I think with the rollout of the new recruits this will become more prevalent.
In D2, playing a M2M, I just recruited a SF with a DEF rating of 13 and WE of 20. Normally I'd stay away from that low a rating but he could approach 100 in SPD and LP and around 90 in REB, PER and PAS.