Chelsea is a side that win 3 league titles in its entire history. Small club by any measure.
Abramovich money give them a boost but they prove that despite the money they lack the fundamentals of a quality football club. Poor man management, high managerial turnover rate and unrealistic expectations.
Not to mention a horrible transfer policy where you buy 20 decent players in the hope that 3 of them turn out to be good and then sell the rest for a pittance (Del Horno, Veron, Crespo, Duff, Sheva, Tiago - soon to be joined by Malouda, Ferreira, Ballack, Deco). Chelsea have money but little else when it comes to a good football side.
That side has no width and two strikers who "can't" play with each other. And they wouldn't even try. Once you take away Essien that is a very inflexible poorly balanced squad.