Gerrard is the typical English midfielder, all brawn little brains. Liverpool ruined him, they gave him too much responsibilities at a young age, which meant he often did everything he could to win games, and ignoring the tactics because they didn't have good enough players to match up. It became a habit which Rafa tried to rid off but didn't work out. It's why Gerrard continuously drifts centrally when played as a winger, and needs Alonso and Mascherano protecting him to look good in midfield. It's no surprise that his best form for Liverpool in recent seasons has seemed him given a free role behind the striker where he's basically asked to just attack.