User blog comment:NinjaWolfy11/Discussion: What should be done about the mobility issue?/@comment-3275908-20120906031340

I would say a high CC team counters a high mobility team. They might all get Merc Treads, but they're the most expensive boots in the game, which slows them down a little. In my experience, silences and stuns always shut down a high mobility, hard-to-kill champ like Yi, Tryndamere, Ahri, LeBlanc, Ezrael, etc.

From what I'm seeing in pro circuit games, everybody except for the support champs always go boots + pots, even the junglers, simply because mobility is important early game. Then you either have a team make-up that's very mobile, with Ezrael, Ahri, and the like, or a team that dishes out lots of CC and protects their artillery cannon, aka, "Protect the Kog" team set-ups. Either one is very viable and it really depends on which team has the better plays, skills, and/or experience.