There's two major factors that count against Baldini...I'm pretty sure that Baldini's signings weren't actually bad, but not right for the club.
Those that failed seemed unsuited for the way that we play, rather than crap.
The manager and DoF need to be reading from the same hymn sheet.
Comolli failed because he bought players in positions that we didn't need to strengthen, while ignoring those that we did.
I think he also failed to do his research on the mentality of a lot of his targets.
Baldini failed because he didn't know who he was buying for.
i.) His approach to signing players seemed to be more a case of "Who I can sign?" rather than "Which players will fit into the team?" Paulinho is the perfect example of this as he lacked the strength and positioning to play in central midfield, yet also lacked the passing and intelligence to play in the attacking trio - but we signed him for £19m
ii.) His approach in the transfer market that summer went against the club's usual transfer strategy, as we paid over the odds for Soldado, Lamela and Paulinho - Comolli made a similar mistake in 2008, and by "similar" were merely paid over the odds for Pavluychenko and Bentley
Another way to look at it is the centre backs Baldini bought, and how they fit in with the transfer ethos:
£8.5m for Chiriches, even though we should've been aware of his propensity to derp
£8m for Fazio - although this was more due to Moreno picking up a long-term injury while Musaccio's price ballooned due to third-party shenanigans
£4m for Dier, who is the only centre back who fits in with our usual transfer strategy
When the reigns were handed over to Mitchell, and we needed to replace Kaboul and Chiriches, the signings were very different:
£11.5m for Alderweireld, who has slotted in beautifully
£4.3m for Wimmer, who has looked like a smart signing thus far
Similar can be said in other positions: Alli was signed for £5m yet already looks more valuable to the team than Paulinho or Capoue ever did, and though we paid big for Son the money seems to have been well spent as he has slotted into the team almost immediately.

