In the Summer I genuinely thought Ferguson had left Moyes the perfect squad to put his "stamp" on. He had absolutely no work to do up front, which is the hardest and dearest position to bring in World Class talent. He had a defender in Ferdinand who was in the Premier League team of the year and is incredibly experienced, albeit obviously in need of resting. He had the vast experience of Vidic and Evans, as well as (potentially) quality defenders in Smalling, Jones and Rafael. He had the best midfielder in the League last season, as well as a decent set of attacking players in Nani, Kagawa, Valencia, Young and Zaha (as well as Januzaj who it seems was destined to feature). His job in the Summer seemed relatively simple. Get a deal for someone like Coentrao sorted early on and focus solely on central midfield. If a wide player became available then Zaha could be loaned, but collectively they couldn't perform worse than last season when we won the League. This was no more difficult than the job required by Wenger, Mourinho and less than Martinez.
Obviously the clusterfeck of a Summer meant we started the season with a squad worse than the one I thought we would start with. However it's a squad that should comfortably be in the top 3, even with the injuries we've had.
If Fergie was in charge I feel we'd be currently sandwiched somewhere between Liverpool and Chelsea with the opinion that once we get RVP and Rooney back we'll right in the thick of a title race (c. 5 points behind Arsenal). Even allowing for something ridiculous like Fergie being 10 points better than a competent replacement with this squad we should be looking to finish within 10-12 points of the eventual winners.
People talk about our glaring weaknesses and forget that other clubs' above us have first choice player's include Eto'o, Cahill, Mikel, Skrtel, Johnson, Toure, Distin, Pienaar etc. All player's that if playing consistently for us in our current system would be deemed "not good enough", but funnily enough also those who are performing more than adequately under the right guidance.
Getting the likes of Vidic, Carrick, Cleverley, Evans, Smalling, Jones, Valencia, Welbeck and Kagawa playing to a title challenging standard is Moyes' job and it certainly isn't an impossible one if you look at the jobs Wenger, Mourinho, Rodgers and Martinez are doing. The one thing that is certain is that Ferguson is not to blame for the current situation. He left Moyes with a really good squad which needed two or three quality additions to make it great, of which we got none.