Stroman had 3.4 fWAR in 2016 add 3.2 fWAR in 2017, with about 200 ip in both. Had a down season in 2018 but is back again on pace to hit close to 200 ip with 3.5+ fWAR. So, if you go with the 1 WAR is worth about $8M, then a 5 yr contract at $16M per year would seem to be a decent value proposition with his track record and age. It is also important to consider that , as the other poster said, free agents are not knocking down the door to come to the Jays, so why not just pay your own guy (who actually wants to stay) what you would need to pay someone to come in from the outside for similar results.