Yes and yes.
There is no general in history who never made a mistake, and no historian could deny that mistakes were made, and nor would I.

Mead says he had "precisely the qualities necessary in a general." and spoke of "His dedicated professionalism "

He said "Haig was a good soldier" and even entitled the biography "The GOOD SOLDIER." because he assiduously devoted himself to improving the professional competence of an army which, when he joined it, had been guided by a spirit of corrosive amateurism."

His view is positive. "The popular view of Haig is still irredeemably-and mistakenly- negative.