Right now, I don't think the tag team division CAN be saved. The Highlanders are useless, Major Brothers are too green, Deuce & Domino are annoying, Cade and Murdoch are completely devoid of getting the fans interested, Cryme Time's fired, and the World's Greatest Tag Team consists of a guy who is underrated (Shelton) and a guy who isn't his equal and is currently suspended (Haas). Londrick got my vote, but they alone can't save it. What I think they should be doing is teaming up those jobbers they have so at least there are some fresh tag teams every so often. I'd like to see a gimmick tag team of Super Crazy and Jimmy Wang Yang or something, lol, even if they wouldn't be title holders. Also, a big help would be to just get rid of having 2 titles and make it a cross-brand defense.
The problem with these tag teams is that they're all lacking half of the equation. London and Kendrick are awesome performers, but when do they ever get on the mic? Deuce & Domino are just costumes and a car, not enough pure talent to make them interesting. The Highlanders are a waste altogether, etc. The best wrestlers out there can juggle both mic skills and in-ring skills at the same time, and the best tag teams out there can do both as well as have some sort of gimmick or point to their teaming up that draws the audience's attention. Owen Hart and the British Bulldog didn't need to call themselves the Hart Foundation, but they were both great on the mic and amazing performers. Legion of Doom, great tag team. Even the Headbangers were able to get the audience interested and show them a good match - granted, you wouldn't see Mosh gunning for the WWE title, but they were two guys you know you could put in a tag team match and the audience wouldn't snore.
I'm really hoping that the new Hart Foundation acts as the jumper cables to boost the WWE, but realistically, I think the main problem here is that with the tri-brand set up, you're spreading your rosters so thin that you simply don't have enough talent to use as tag teams (especially not when you're firing them left and right and suspending them for 30 days).