look, he's still an invaluable cog in the Red Sox machine and will probably still give you a .250 average with between 15-20 homers for the next 2-3 years. Obviously, it would be nice if we had a blue chip catching prospect ready to slide in and take his place but these days, those are hard to find for any team.
I'm sure the club is hoping Kottaras is that guy but worst case, they'll go out and get someone as a free agent who will put up roughly the same offensive numbers but probably won't give the team the same defense and intangibles as Tek and the team will just have to win without that