I would absolutely veto that. LT was almost certainly a top five pick, while Moss may or may not have been taken in the first round at all, and I would guess Gary wasn't drafted, depending on how much James Stewart news there was when you drafted. So this early in the season, it comes down to draft order for me when vetoing a trade (of course there's exceptions, but I don't think this is one). I vetoed one earlier this year (Boston for James Stewart before he was hurt), and it upheld because of the huge difference in draft positions (DB was rd 3, Stewart 17). It wasn't collusion or anything, just a stupid trade that would have been a hinderance to the rest of the league. I'm not saying the protest will hold up for sure unless you have the power to make the call, but I'd give it a shot.
"When I was a kid I thought I was going to be the starting centerfielder for the Boston Red Sox. Life sucks, get a f___ing helmet." --Dennis Leary