GM's aren't always necessary and most of the time WWE just sort of has one there to just be there. I really don't think WWE cares about it as much as the IWC does and I'm alright with that.
But its been a long time since we've had an effective GM character like Bischoff, Stephanie or Heyman and that's all I want this time, someone who is enjoyable on the mic (not in the incidental, cute puppy pissing in its own face quality John Laurinatis has). Normally I wait with baited breath but there've been way too many GM's over recent years that are just kinda ineffective overall, like Adamle, Vickie, Laurinaitis and Teddy.
And sure, the IWC throws bitchfits over this sort of thing when they shouldn't, but sometimes it feels like WWE are almost trolling us. Most of the time, the GM's are notably billed as "interim" or whatever, indicating WWE has some kind of plan going on. Then it leads to nowhere and its never addressed again. Sometimes I think the IWC has reason to feel disappointed. If WWE would quit being so nebulous about their General Manager angles and either let us forget about the concept or say "alright here's your GM for realsies, deal with it", there'd be a lot less confusion and complaining.