i don't want to see marchi rotting on the bank every game
Marchisio is a utility player, so whenever Krasic, Aquilani, Melo, or LW can't play; he'd be filling in. He would be getting a lot of playing time. Not to mention that if we make it to the CL next season, we're going to need a lot of squad depth.
Also, I love Marchisio and I think he's great but even if it mean he had to rot in the bench; is that a good reason to hold back? I support Marchisio but I want what's best for Juve above all even if it meant putting Del piero on the bench.
If some LW proves to be more useful than Marchisio then I don't understand where the problem is. If we were about playing Italian youngsters who love the club and are fan favorites then Giovinco would still be with us.