Certain wrestlers are bigger than the titles, HHH, Shaun Michaels, Undertaker, Flair, and now if you like him or not John Cena. No matter what they do, they are main eventers. If Taker and HHH had a match at Mania, the title matches may be at the end of the show, but they would still not be the ME. That is why this idea would not work. If they want to raise the prestige of the mid card belts, all they have to do is have more people trying to win these belts in the mid card, and have real feuds over them.