Re: The (potential) Masters of Evil thread
It's more than just tying everything together it's "If Thanos doesn't get ended in Avengers 2 who are the Avengers going to defeat in Avengers 2?" Which, based on what we know about Trilogies and the clues Marvel has given about the culminations of Phase II and III coming from the build up of Phase II, it seems a very valid supposition.
And while Thanos may not work from behind the scenes anymore, he actually doesn't get his hands dirty until the climax, from what I've seen of him, as he runs a big giant empire. He fields others, both from his army and from Earth to do things for him as often as not.
The MoE, just happen to be the convenient thing for him to field vs more Chitauri or Ultron or Kang or any other Avengers villain. Would his goals overshadow those of the MoE? Absolutely. I think that's acceptable, because the MoE still carries the personal motivation angle, while Thanos is a relatively indifferent philosophical enemy. I think that works at least as well as the MoE being both the personal and philosophical enemies. Plus, it's not like the "real" MoE can't be done with Zemo later.