As SonofaRoache pointed out, James' second half reverted back to his career numbers, and it made sense to let it play out and see if his production was an aberration or not. Signing Grandal sealed his fate, but James played well in limited opportunities last season. Hopefully he's able to keep it up moving forward, but it would've been somewhat foolish at the time to over commit to someone who, for most of their career up until that point, had been bad. I would've loved if he would've returned, but it just wasn't going to happen and it was obvious. The Sox have/had other holes to fill, and prioritizing paying a backup catcher really wasn't one of those.