If Cilic had an injury this is understandable. If not he needs to take some drastic measures with respect to his coaching situation.He is really stagnating
Stagnating? well i hope you don't mean he is stagnating from his past USO/AUSOPEN form.
Maybe Cilic is a later bloomer ala Soderling/Berdych, who knows?
His game is nowhere as physical as those guys though.