That video on Money ball isn't very good, btw... Baseball took OBP very seriously. It actually takes it to seriously. wOBA is a way better stat.
The problem with the money ball approach in football compared to north american sports is there's no relegation. When you look at the A's history in the last 18 years it's an absolute roller coaster ride. They will win their division and be very competitive for 3-5 seasons then drop down to one of the worst teams in baseball for 3-5 seasons. The A's were the worst team in the league 2 seasons ago, and the 3rd worst last season... Everton, and any PL club, don't have this luxury. So eventually you have to buy solid PL players like Schneiderlin, or Ashley Williams for a bit more money then you should.
Saying all that though, there's no problem in looking at analytical stats that no one else is really looking at to target a player and go and buy him. We just can't do that for every single position on our squad like the Oakland A's do.