When taking in to account the club he came in to though, and the resources available to him, he had a far harder task in achieving those decent league positions than say Martinez, Koeman and now Silva. He didn't inherit a Leighton Baines, Romelu Lukaku or Theo Walcott like those 3 have. He inherited a squad that had finished higher than 12th just once in the previous 10 seasons and had the likes of Simonsen, Pistone and Scott Gemmill to work with.
He came in, steered us away from any relegation threat to have us competing with the top 6 regularly. Something we have struggled to do since he's gone, except for that one season under Martinez who took us from 6th to 5th (albeit through excellent management of the side during that season).