Giolito was in part so special because he completely re-did his mechanics and started pitching with a completely different arsenal (mid-90s 4 seamer, changeup).
Definite chance Cease can never command well enough. But pitchers spontaneously find that pitch or velocity or deception that vaults them all the time...and also fall apart a lot. Pitchers, man.
So it's hard to watch for me, but I do think once Cease has his fastball missing bats, it makes it all easier. And now, can he fix the spin? He probably can, And then a fastball that rides the top of the zone will be tough for hitters. But now it's nothing and so he's just all over the place.