You know how other teams develop the back end of their rotation, so they don't have to pick up Colon and Garcia every year, or sign Kuroda?
They leave a promising kid in the rotation, and let him take his lumps and learn his trade.
Take, for example, the Angels' starter tonight, Ervin Santana, who began his career with terrific stuff, but took his lumps the 1st 3 years of his career before emerging as a quality #3 man (now pushed back to #4 with the arrival of Wilson).
Check out the 3rd and 5th seasons in his career log.
Would everyone just leave Nova alone to figure things out?
Hughes gets a shorter leash, because he's had twice as many years, and twice as many big league starts.