Gloucester director of rugby David Humphreys hailed the recruitment at his new club and believes there is "huge potential" at Kingsholm.
Humphreys, who made a shock move from Ulster this off-season, joins Laurie Fisher, Nick Walshe and John Muggleton in a new back-room team.
Also arriving at the Cherry and Whites is James Hook, Richard Hibbard, John Afoa, Tom Palmer, Mariano Galarza, Aleki Lutui and Greig Laidlaw.
"Huge credit to Nigel and [chief executive] Steve Vaughan in terms of the squad that they've put together," Humphreys told BBC Points West.
"I think when you look at the players that have been brought in, the Gloucester squad now is a squad with huge potential and some top quality international players.
"I think when you add that to the mix of coaches that are coming in and the quality that they've had at different levels I hope it will be a good mix."
Humphreys added: "The biggest challenge for us all is expectation."
"Not just the expectation amongst the players, who are very ambitious and want to be successful, not just amongst the coaching team, but also among the wider supporters and the club.
"History has shown it is very, very difficult to put together a team that can immediately win. History has shown it takes time to build a team and get to know the players."