From Tipperary, Ryan trained the Laois senior hurlers under manager Niall Rigney for three years before Davy Fitzgerald brought him in earlier this year as a defensive coach.
Previously, Ryan made his name at club level with Portlaoise, where he teaches in the local CBS, bringing the predominantly football club to three successive hurling finals.
Ryan's influence in Limerick hurling is also evident: he was secretary of the Bord na nOg and several of his U-16 side backboned the three-in-a-row U-21 All-Ireland winners at the turn of the millennium.
A former Waterford selector with Ryan, Cashin hails from the Abbeyside club and as well as the 2007 Munster final triumph, he was also involved in the win three years before that.
A teacher in famed Kilkenny nursery St Kieran's College, he led the Cats minors to All-Ireland success in 2002, a rare accolade for an outsider. He also coached the Waterford minors in 1995.
Formerly an international sprinter and national champion, Flanagan was the physical trainer for three All-Ireland winning Kerry teams (2004, '06, '09). He taught physical education at the Presentation SS in his home city of Waterford from 1983-1995.