What would happen if the 2009 Sounders played the 2015 Sounders?

Let me throw out 2 rosters, just for fun.

2009--Keller, Hurtado, Ianni, Leo, Riley, Evans, Alonso, Ljungberg, Zakuani, Jaqua, Montero

2015--Frei, Remick, Marshall, Evans, Mears, Pappa, Alonso, Pineda, Neagle, Deuce, Oba

Would 2009 out-physical 2015? Would 2015 completely blow 2009 out with superior decision making, creativity, experience, and attack? What would possession stats look like?

Here's my hidden agenda: I personally think 2015 would absolutely destroy 2009 (as in, 5-1 type of score). What I really want to know [if you agree] is how many other teams in the MLS have improved as much as we have over 6 years? How about in the world? Or if you disagree with my premise, what are your thoughts as to what would happen?

FanPosts only represent the opinions of the poster, not of Sounder at Heart.