The midcard of SD is not bad, but is not a solid one. Chavo is a good heel, but is just booked in Eddie related storylines or being the CW useless champion.
MVP is kindda in the upper midcard right now as a feud with anyone in the midcard not named Matt Hardy would be a failure.
Kane and Mark Henry are build for a while only to be feeded to the real main eventers.
Finlay, Flair and Hardy are the only ones credible, and you can't call that solid. This is for the moment, because if they continue their work with Kane he is going to be back being credible, giving Chavo a feud with someone not named Mysterio would also make him grow. And in a while we might include Masters, Dykstra and Yang, along with all the CW division