Man U nearly always have egomaniac managers - suits the grandiose nature of the club and fans. Poor old Moyes was humble and look what happened to him.
Get some kettles and do this stuff for free. It really works. I am 48 and its got me back to where I was in terms of fitness and strength and tone a decade ago. I also mix it up with cross country runs and mountain biking.
Insanity/Crossfit etc are all designed to relieve £ from people who have little inherent motivation or self-discipline.
Anyone remember a particularly ill-tempered home match v Palace in the late 70s when they kicked Saints off the park? When the teams emerged for the second half the whole Dell chanted in deafening chorus: "Animals! Animals! Animals!" at them.
We won 2-0 or 2-1 I seem to recall.
We stopped using ultra- fitness and pressing to make up for our technical shortcomings and lack of depth.
Now we are just like all the other mediocre clubs