Bunnings owner Wesfarmers bought Homebase for £340m in 2016 and brought over an Australian management team. Matt Tyson, formerly of B&Q, is an advisor.
Conversions from Homebase to Bunnings continue, with four opening by June 30 and two in Kent in progress.
Bunnings UK and Ireland appointed former B&Q executive David Haydon as general manager for Homebase in May.
Bunnings said McGloughlin's role would be to support Davis with the store roll-out. No further conversion sites have been announced, with 10 due overall in 2017. McGloughlin is on gardening leave and a Bunnings start date is to be negotiated.