Ten team members for an Avengers squad is a bit much. Ultimately some characters don't do much but stand in the background, get in 1-2 lines an issue, and show up for fights. GUARDIANS OF THE GALAXY couldn't even avoid that problem. While DnA keeping Groot relatively "simple" didn't hurt him too much, Major Victory for long stretches of time was/is a non entity on that book. You go stretches of time between seeing entire handfuls of characters. THANOS IMPERATIVE #2 had Major Victory get captured and all I could think of is, "he stayed at Knowhere, so where are the others who stayed", like Jack Flag or Moondragon? Most teams don't manage equal character fleshing with more than 7 members, and depending on the writer, even 7 is too many. I can't for the life of me find anything relevant that War Machine has done in SECRET AVENGERS. U.S. Agent did more in THUNDERBOLTS than he did in MIGHTY AVENGERS, frankly. Having 10 Cosmic Avengers ensures that, at best, 4 of them will just be combat scenery.
Besides, every time Gladiator has come to earth, he's usually been trashing something fighting the X-Men or the Fantastic Four (he damn near flattened Manhattan for that one). I'd imagine to SHIELD Kallark should ideally be seen as a threat if he popped in again. Not to mention, of course, Ronan and Super-Skrull. Especially Super Skrull. I also think removing She-Hulk from the HULK titles is about as impossible as removing Colossus from the X-MEN books at this point.
Has there been an old Nova Corps series? I don't see why a relaunch couldn't just be NOVA CORPS.
Part of me is wondering if the Guardians that went into the Fault with Thanos either die or just go missing, which is why Groot & Rocket have their own mini, maybe to look for them. But now we're digressing.
To get back on track, while some people would compare it to when DC spammed the Justice League in the 80's, but AVENGERS INTERNATIONAL has a nice yet stoic ring to it.