Randy Orton and his hair

While undergoing the slow but steady and monumental task of transferring all of my VHS tapes (about 2000 of them) to DVD, I came across a random episode of Smackdown from the mid-00s. While watching it, I was shocked to see it featured both Batista and Randy Orton, back before they both shaved their heads. 

While Batista shaved his head to deal with his own balding problems, was there ever a behind the scenes reason why Orton got rid of his? He looked much better with his hair grown out than with the super short buzz cut he's had for the last 10-12 years. Was it part of the general repackaging when the WWE decided to give him the Carol Danvers/John Stewart treatment, where they started pushing him to the point everyone started actively hating him as far as turning him into a one-dimensional cliche?
Also, in their endless push to force him down our throats, why hasn't the WWE made him grow his hair back out since then? I mean, Randy with a full head of hair looks different enough from Randy with a nearly shaved head, enough of a difference that they could probably have gotten him a new lease on life career-wise; the same way Cody Rhodes was able to reboot his career by growing a moustache, after his Doctor Doom gimmick played out and he ended up falling to the wayside for a bit.


I can honestly say I've never even thought about it before.