Mark Fox as HC for the MBB team isn't the issue. The issue is the process by which Knowlton 1) fired Wyking Jones and 2) hired Mark Fox. In both cases, Knowlton has done little to inspire confidence in his actions and choices.
First, Knowlton took way too long to fire Jones. Jones should have been fired within 48 hours. That Jones wasn't fired within 48 hours tells me that Knowlton was not consulting with major donors during the regular season. The performance of the team during the regular season and Jones' willingness to use player performance as an excuse should have been more than enough to get him fired. Evaluation of the program should include attendance (which was atrocious) and donor input as well.
Second, Knowlton used a search firm to essentially give hm the finalists. But did Knowlton also consult with MBB alumni (Kidd, Abdur-Rahim, Marks, Montgomery, Braun, etc.) about possible candidates and attributes for success in the Cal environment? It seems doubtful.
Maybe Fox can be the guy to get Cal back to respectability in the Pac-12; certainly his track record doesn't inspire loftier goals as likely achievements. If that's Fox's ceiling, then I hope that Knowlton will be willing to let Fox go when he's hit that ceiling and not waste years pursuing goals otherwise unattainable.