Sanchez is a reliever? I'd hope the Jays try him out as a starter. The Jays after 2015 won't likely retain Happ and MB, so that's two openings. I doubt the Jays will sign a big FA pitcher, since they are crazy expensive on the open market, so stock piling on as many young cheap arms like Stroman, Hutch, Stroman, Norris etc. is important for this organization moving forward. I know Lawrie hasn't been able to stay healthy, though with his skill set over a full season, he can easily produce a lot of value. I have no problem trading Lawrie for Donaldson obviously, though giving up their other top young arms like Sanchez and Norris on top of that is a lot.
C Navarro
1B Encarnacion
2B ?
3B Donaldson
SS Reyes
RF Bautista
CF Gose
LF ????
DH Lind/Mayberry
SP Dickey
SP MB
SP Stroman
SP Hutchison
SP Happ
Like I said, MB and Happ are gone after 2015. That creates two holes in the rotation. Plus, any injuries to those arms I'm not sure there is much depth afterwards - Nolin, Drabek, Redmond, Graveman etc.
How will the Jays make upgrades at second base, in left field and in the rotation moving forward? The main trade chips like Sanchez and Norris are gone. Donaldson after 2015 will keep getting more expensive and likely will be providing slightly less value, the Jays will have holes in their rotation, and other areas as well. Just doesn't make sense.