I read an article about their basketball team's conditioning drills which was pretty interesting. A big part of their conditioning is using medicene balls and they do these exercises a ridiculous amount of reps- like 1,000 reps of all these exercises day after day after day. At first thier players are like, "This is no big deal" but after about 400 reps, it starts to wear them down.
So, yes, their conditioning is better, but so is their talent, and yes, their coaching is better to.
But you comparing MSU to UNC would be like me comparing MSU football to Southern Cal football.