Correction, Microsoft and Sony tanked Vanguard.
Are you sure ?
Right after Vanguard failed, there was a lot of talk about it. One thing that kept coming back was how McQuaid did a terrible job. Supposedly he hardly showed up at the office during the last 4-5 months before release (aka crunch time). At the time, I've read an anonymous interview with an ex-Sigil member (McQuaid's company). Who had all kinds of nasty things to say about McQuaid. One of the things I vaguely remember was that McQuaid had a serious drugs-problem. Even after release, and when Vanguard had failed and the company was being killed off, he still didn't show up.
E.g. read this, from a Vanguard fan-site.
http://www.thegrouchygamer.com/?p=39
So yes, McQuaid was certainly responsible for the failure of Vanguard.
Besides all of that, I think there was a serious problem with the game-design in that game. I've played Vanguard, I've played a lot of WoW. I've played many other MMOs (although most not longer than 2-3 months). I love it when an MMO tries to be "a world", and not a game. E.g. not too many instant teleports, no flying mounts, etc, to make the world look bigger. I don't like easy-mode leveling. I don't like free epix. Etc, etc.
But at the same time, modern MMOs did make improvements over the old EQ1. E.g. I love group content, but you also want people to be able to do meaningful things solo, when they can not, or do not want to play in a group. Travel-time is good. But you don't want people to spend half their time traveling, or make travel prevent group-play. Crafting is supposed to support the game, not be a chore in itself. You don't want people blocked from content by other players, so instanced content certainly is needed. (Of course you can have non-instanced dungeons too, but not solely). Gear needs to be soul-bound, or else 99% of all gear will become useless in a month (in Vanguard you could pass gear around to any character). Stats on gear needs to be meaningful (Vanguard had low level gear with better stats than high level gear). Etc, etc.
I was not impressed with Vanguard. I don't care about bugs. Bugs will be fixed some day. The real problem is the design vision, and the game-system designs. Those need to be good. And Vanguard's game-systems were terrible. Really terrible.
I wouldn't touch anything that McQuaid was involved in, not even with a 20-foot pole.