12 Dec, 14:42
Prop Cian Healy is expected to miss the start of the 2014 RBS 6 Nations after undergoing surgery on his injured ankle on Wednesday.
Duffy, capped six times for Ireland, is in his second year coaching at this age grade, having come into the 'Wegians Under-=20 set-up last season.
A native of Ballina, County Mayo, he has been an ever present in the Connacht side in recent years.
Swift, who originally joined Galwegians in 1998, is now Connacht's longest serving current player with and will celebrate 10 years with the province this season.
Galwegians promoted no fewer than five Under-20 players into the AIB League during last season and believe that having quality coaching at that level has made such developments possible.