The trouble is there aren't that many good players available in the winter transfer period.
Also if you keep comparing our squad to Man City and Chelsea I'm afraid you are always going to be dissapointed. They can buy 4 Ozils a year if they want to.
We do have to beat Chelsea if we are to still be considered for the title, another straight loss to our rivals would be very bad. Even if we drew it wouldn't be great but acceptable, but losing at home will be very bad.
Well, I believe we have no choice but to compare our squads to theirs as they are direct competitors. I realize we can't have a stacked squad as theirs, but there is still more that we can/should do in our gameplan. Also, continously improving our squad is necessary if we want to get anywhere. We will see what plan Wenger has.
I like Gerd's idea, there is a lot of talent trying to find playing time in the shadow of the World Cup, and we certainly could use some new blood/reinforcements in a few positions.