Cossey will be joined by long-time friend Shane Combers who was his assistant at Hamilton Wanderers.
Combers has breathed football during his time in New Zealand and started the popular store The Soccer Shop before giving up ownership earlier in the year.
"We are good friends and respect each other views. At Wanderers the last three years together we finished in the top four," Cossey said.
"We work together and that's why I wanted him when the opportunity arose."
Claudeland Rovers is not the only thing on Cossey's agenda.
The Waikato Football Academy, which he started while at Wanderers, has become a main goal to develop.
The academy will allow players from any club the chance to develop their skills.
"I started the academy just to allow players who wanted to do extra training to be allowed that opportunity from six to 13 years of age."
"We've got some good players in now who have been playing for youth teams and they have come from four or five different clubs."
Cossey is looking to expand his academy out of Hamilton, with sessions now being held in Matamata from October.
The academy is hosting a Tri-Sports holiday camp next week with former Black Cap Chris Kuggeleijn and current New Zealand National Basketball coach Anthony Corban also taking part.