They key to retaining Galvin, or any of the juniors at this point, is finding a way to get the best players on the field at the same time.
A number of us have suggested moving Galvin into the forwards. I'm one of those. But really, it's because I want to see Latu Fainu on the field too.
We have a current weakness in the second row, lock & the centres (arguably on all accounts). So fitting Galvin into the back row, or Fainu into the centres, Mason into the centres- whatever the layout might look like- the important part is not letting high quality players wither in reserve grade, or be forced out looking for opportunity, while we have players like Seyfarth etc keeping them out of the team (no disrespect to Seyfarth, but compared to Galvin & Fainu- who would you rather sacrifice?)
Galvin played second row in our successful Harold Matts squad. Just because he wears 11 or 12 doesn't mean he has to play like Liam Martin. Gavin Miller & Wade Graham were very good second rowers that are polar opposites of what seems to be the 'modern second rower'.
Same goes for Fainu, or Galvin, if they played in the centres.