IMHO: As long as he's not hitting .500 you can send him back down. This is just to give Arcia an introduction to MLB and the fans a taste of what's to come. The marketing on this team has been really stupid, pretending they are going to field a competitive team this year. The marketing approach should be trying to get fans to 'pick a kid to watch'. Is your guy Plouffe? Parmelee? Dozier? Hicks? Floriman? Escobar? Worley? And, of course, Mauer, Willingham, Morneau will be there, too! Something like that. Bring Arcia up. It may not be this trip, but this kid is going to make a difference.