I definitely agree with you about the left winger. There was no one that I really liked, and I noticed one of Lennon's preferred positions was LM so I stuck him there.
I had toyed with the idea of playing Gerrard at LM, Beckham at RM, and picking up Essien and Gareth Barry to play the CM spots. But there is not nearly enough speed on the outside when I play that lineup.
I know I definitely want to keep Gerrard at CM because his long shots are lethal. And you're right about Beckham, despite his playmaking ability I should get him out of the middle. I should start him at RM and use Walcott as his sub.
That LM position is killing me though, I don't know who to play there.