Tbh although Giggs playing for the 90, or more so ending up in a midfield with Jones wasn't ideal he was clearly fit enough to last the 90, not to mention, despite Ando having some bright moments, Giggs was easily more dangerous than Clev and for me was overall more dangerous than Ando. It's easy to pick on Scholes and Giggs, but I'd be more concerned by why two early/mid 20 year olds can't last for longer than a 39 year old, nor why between them why they look neither like a proper cm nor an am, looking more like a hybrid, which I'm not sure is a good thing.
It's still relatively early I guess for Clev in terms of experience if not age, he's had a decent season although trailed off for the last few months. Ando has pretty much been static in development since he arrived here.