Michael N. Todaro/Getty Images
In many ways, John Cena can be considered one of the, if not the, least successful tag wrestlers to be multiple-time WWE or World Tag Team Champion, but there is certainly a bigger picture to be seen here.
For four consecutive years (2008 to 2011), John Cena was involved in singles feuds that ended up embroiling the tag team division and, most importantly, the tag team championships.
The main issue with this is that it has become a cheap way of garnering heat for singles world title feuds: Have a rival join, only to betray, John Cena and thus make him lose a title, giving fans all the more reason to hate the heel and cheer for The Champ come the big blow-off match at WrestleMania (in the case of The Miz and Shawn Michaels).
I am not wholeheartedly criticising this type of storyline; it would seem fair to suggest that it has now been done to death, and let's just hope we don't see it again in the near future. With all the effort WWE is putting into revamping its tag team division, a move from Creative like putting the belts on, for instance, Cena and Punk to add steam to their rivalry would be disastrous, although not unexpected.
The first time this kind of thing was done with Cena, with The Showstopper, it was unique, interesting and played out well. The pale imitations that followed (seven-, one- and zero-day title reigns) surely were not necessary and only served to damage the tag team division in the long run in favor of a short-term gain in the singles world-title scene.
A final thought: Perhaps it was the kind of tag team title reigns John Cena has had that is in part responsible for the death of the division, and we can only hope that this frequently used angle isn't used for a fifth straight year.