The make-up of the wider coaching team is a work in progress but Kirwan has said he will have responsibility for attack and would like specialist backs and forwards coaches, a skills coach and a strong manager - a structure largely similar to the one Henry implemented with the All Blacks between 2004 and 2011.
Former All Black skills specialist Mick Byrne, who worked with Kirwan in Japan, is favoured to take up one of the roles. The Blues will have to dig deep financially to fund the bigger management team - but it is an expense they will meet after lagging far behind the staffing levels of other teams.
The New Zealand Rugby Union will also welcome the greater investment, as they have shown in recent seasons that they want to help rookie Super Rugby coaches settle. When Jamie Joseph took over the Highlanders in 2011, All Black assistant Steve Hansen was to have been seconded in an advisory role. Dave Rennie benefited by former All Black assistant Wayne Smith's appointment as technical director.
The national body wants head coaches to be in charge, to take control of their respective teams, but is conscious that this process can be helped if a senior figure is available to offer advice and support without being overbearing or taking over.
Fixing the Blues and helping rugby build a bigger presence in Auckland are strategic goals for the NZRU - another reason they are keen for Henry to be more involved with his former franchise.