As a doggie supporter who has watched St Kilda smash us with their talls for years, I think St Kilda's strength is also its greatest weakness. When Kosi, Riewoldt and Gehrig are on fire Saints are hard to beat. When they are held, you have NO other options for scoring. Your midfield players don't score goals - compare that to what the Dogs did (Griffen 3 goals, Cooney 2 goals, Hill 2 goals) Our best forward scored nothing ( Johnno ) but every other forward did. Saints lack options and you struggle to play 4 quarters because your big guys can't consistently fire for 4 quarters.
I also worry your midfield stars played their best footy 3-4 years ago (injured Ball hasn't been great for years, Del Santo is hot and cold and Harvey is an all time legend who is in his last year )whereas we have the youngsters Cooney, Griffen, Boyd and Cross taking over from the old master Westy.
Saints have always outmuscled us in midfield with Hayes, Harvey, Ball, Baker ( you missed him) but we won the contests and then ran away from your slower side.
I still rate the Saints but you have to get more goal kickers in this era of running goals. Look at the Cats - everyone in the side kicks 2-3 goals each running down the ground. Hayes, Dal Santo and Harvey have never been regular goalkickers - that's your problem.