For me, Kenney was completely the wrong choice as replacement for Keith Moon. That's not to say that he was a useless drummer, far from it, but he was just not right in that setting.
At the very least, Kenney ended up trying far too hard to either BE Keith or trying to play LIKE Keith. In recent years, Pete and Roger have recruited Zak Starkey who just gets up there and plays like Zak Starkey - which lends a completely fresh air to the band's material - you certainly don't get the sense from the guy himself that he's trying to fill Keith's shoes at all. Maybe Kenney's insistance on playing on a riser had something to do with it as that would have changed the feel and sound on stage *completely*.......
Roger's big problem with kenney, *I* believe, surrounds the state that Pete was getting himself into at the time. Pete was losing the battle against alcoholism by 1979 after a number of years of introspection (and the resulting material on Who By Numbers, Who Are You and Rough Mix). Keith's death added to his personal misery and the fight to keep The Who alive plunged him further into the uncertainty of whether he had made the right decision or not. bringing in a party-animal like Kenney was just the worst thing they could have done; it almost smelt of "Well, if Keith's dead, who am I going to drink with now on tour?".
Roger saw that coming from the very start and, although he was very positive about the whole thing at the start (press interviews and his comments on stage during the first shows in the UK & Europe in '79 attest to it), as time wore on, Pete descended further and as Pete lost control, he turned to heroin in 1981 (I'm not saying that Kenney was responsible for that, but that the continuation of the band working at the time was). I think that Roger decided he needed an avenue to vent his frustration and, sadly, Kenney bore the brunt of it all. I understand that there are other "personal" reasons behind Roger's feud with Kenney, but that's another matter.
Kenney's first show with The Who at The Rainbow was an absolute killer - full of drama and the uncertainty of whether The Who were just going to explode right infront of you. Kenney was superb too, as he was for the rest of that year (Paris and New York being particularly strong). Once they started trying to make new music, the impetus had gone and Pete had completely lost his edge as a writer - therefore, that uncertainty and lack of true belief in what they were doing lead to poor results on stage (barring the obvious nightly highlights their back-catalogue could generate.
All in all, I just think that Kenney was given a task that absolutely no one could have taken up and been successful with. None of it was within his control other than truning to Pete, Roger & John and saying "No thanks!"
