If by "Pearce started off playing very well", you are referring to his very 1st game as a J, where he went 3 for 5, then you are 100% correct.

At that pt, he was batting .600 with an OPS os 1.200.

Uh, the rest of April, however, he went 6 for 49, batting .122, OPS of .305 or so, and he Ked 17 times, more than 1 in every 3 ABs.  Assuming you were not even remotely aware of this information when you posted that Pearce started off the year playing well.

Pearce went on the DL on 'bout May 15, coming off around June 16, which by most calculations is 'bout 1 month, not 2.

Are you also of the opinion that Steve Pearce has played a great left field?