He clearly won't fill an everyday role, having Melky in CF for a few innings here and there isn't going to hurt this team. The way you overreact to just about every single decision the Jays make is laughable.
I'm not overly concerned with the minor league results. It wouldn't be the first time a player from the DR took a little extra time to find his stride, it wasn't all that long ago we were all skeptical of EE and Bautista.
Or any games since September of last season. If you can't see that Sierra has a great approach at the plate right now your blind, he's taking tough pitches and hitting mistakes hard.
Why? He's looked good with the bat since Sept of last season, he's looked decent in the OF so far this spring, he has a cannon for an arm, and I haven't seen any of the baserunning nonsense we witnessed late last season.
It's still a clear violation of the rules. The fact that Miami put a s*** team with a petty payroll on the field last year is irrelevant. Would Boston use that same lineup in a spring training game against the Yankees? I obviously can't say they wouldn't but I highly doubt it.