Turn this around... Any town with vacancies in their PD should solicit every single member of the Ferguson force. Throw in an upfront relocation package to the most qualified respondents.
If they were all that great as police officers I doubt they would have been on the Ferguson PD to begin with. The police departments for all these tiny St. Louis suburbs don't pay very well to begin with, and ones like Ferguson and Berkeley and Kinloch with their demographics pay even less so they don't attract the highest quality recruits. They tend to get the ones who want to be police but who can't qualify for St. Louis PD or the county sheriff or the departments of the more affluent suburbs.