In an ideal world you'd have a city centre stadium but where would you build it? Especially when you have an uncooperative council.
So if you're having a stadium that's not in the city centre then transport links come in to play. The Uni manages to get about 30K full time staff and students in and out of the site even before several large infrastructure projects come into consideration. Add in a major junction on the new relief road, the light rail project and the proposed Kings Hill rail station and access should be a lot better than the Ricoh.
Anyway, that's enough posts about a non-existing stadium for one day