Wow, a Jays fan.
I will take Matsuzaka, because there is pretty much no pitcher in the AL (Santana and that is about it) who has been scouted more.
Teams will adjust to Marcum, they already know Matsuzaka, he will now adjust to him as he learns the league, the stats etc etc.
No pitcher since June has a lower ERA than Matsuzaka, showing adjustment already on his behalf
Don't get me wrong, Marcum is a fine pitcher, but I will take Matsuzaka for his track record as a big time pitcher.
But then again, I am a RS fan.
Matsuzaka will cost up to 103million by the way. 51.11 bid, 56million contract, up to 60-62 with incentives or something.
You can do this all the time with kids through farms, and FA signings.
A lot of young kids start great, Marcum has, but they don't all last because teams adjust and the scouting gets better.