I don't even know how to grade Twins starting prospects anymore. Morris is interesting in the same mold as Ryan, Ober, Matthews, etc. This front office is very good at getting the most out of right-handed arms, time will tell whether the trend continues with Morris. He's not a flame thrower but like SWR, seems to just know how to get hitters out (though SWR's track record was far more volatile).
It's hard not to be excited about the Twins rotation for the foreseeable future.