Taking a look around some elite teams it seems like they put an emphasis on their special teams coordinator.
Urban Meyer coached specials himself.
Saban hired Jeff Banks, a dedicated STC with experience at Texas A&M, Virginia, UTEP etc dating back to the 90s.
Georgia's dedicated STC has experience as the head guy at Auburn for four years.
LSU's has STC experience with the Saints and three prior college stints dating back decades (ECU, UNLV, Illinois)
Clemson's STC/TE has experience in ST in the 90s with Alabama, and had recent experience as the STC in Duke and Maryland before being hired.
I think Hartley proved that you can't stick anyone at STC, and if they don't know what they're doing it could be disastrous.
A guy like Saban using a coaching spot for a dedicated special teams guy proves to me a technical/experienced ST coach can make a worthwhile difference.
Does Patke have any experience at all in specials? What evidence did Manny really have to conclude that he can turn things around with Patke?