I still say, Taker & Kane's current fued has a lot to do w/ their ability to work together. Keep in mind, Taker has had a lot of mishaps/injuries, lately.
This angle is a good 'fit' for both...Taker gets a fued that can be hyped w/o much in ring work, allowing his body to heal, while Kane gets a much deserved, major push.
I just hope they keep Kane as a major character, afterwards. He's earned it. I know I've been critical of his mic time (which can be corrected in a number of ways), but as someone else noted, who else has been as steady and reliable as Kane, over their entire career?