Cro Cop was far from his best shape then. He fought with thorn biceps and only one hand ve Nelson for example, he was old school, multiple fights per night without knowing who your opponent might be, carry on your injuries, not like today's UFC 1 fight per year.
Cro Cop also had 3 - 4 times more fights than UFC veterans and more mileage and wear and tear.
Mir is now fat and out of shape with lot less fights, is 2 - 6 and now can lose to anyone.
Cro Cop has an excuse for every UFC fight simply beacuse rules and enivronment are bad for him and he is on 50 % in the cage.
There's a reason why stand up combat sports like boxing, kickboxing, muay thai are in the ring. Try to imagine boxers in such a large space like ocatgon or on tatami, it would look totally ridiculous. Just wach Sanchez fight where Sanchez was able to avoid strikes all the time simply by movement, circling and using space. It is almost impossible for Cro Cop to hit anyone in such a large space because they can allways evade and move away from his left side. Not to mention rules that are made for wrestlers with long clinching, fence pushing, elbows etc. Totally different from ring where he had 150 fights, where he can use his boxing & K-1 movement, cutt off ring, close to corners and where the target is more stationary.
I think that anyone with common sense and some MMA and martial arts knowledge can easily see that Cro Cop is not at his best in American MMA rules, and that rules and environment diminish his strong sides and emphasis his weaker sides. I belive that this is completely reasonable.
Considering this thread is about Jones v Fedor.
Just send Jones to the ring. He loses space to keep reach advantage and use his long limbs, no fence for wrestling and clinching, no elbows = Fedor murders him.