Giolito is pitching in the Gulf Cost League (GCL), I wouldn't expect it, but it would be cool to see him in Potomac (high-A) or even Hagerstown.
My hunch (never right, however), is he starts season in "Hagersburg" and does second half at Potomac. Pitches his 160 innings recovery year. Then splits season at the real Harrisburg and Syracuse.
Is Ray, Solis, Cole are really good (plus Jordan and Karns?), no reason to rush Little Gio.