"I don't want to criticise what's gone before me; I've lots of respect for Martin - winning the Six Nations last year they played some really good footie. But Chris Ashton, Ben Foden, Toby Flood - as an attack coach that sort of calibre of player really excites me. You could really unleash those guys. For me to move a team like that forward would be a really big challenge."
The 46-year-old, who played 63 tests for the All Blacks and was part of the 1987 World Cup winning side, has previous coaching experience in the Six Nations after leading Italy from 2002 to 2005.
"I've worked at some interesting places like Italy - I understand the Six Nations and Italy had its challenges as well from that point of view. The buffer [between players and executives] is the head coach. What happens above me should not affect the players."
Earlier this week former All Black coach Graham Henry ruled himself out of the England job following former South African coach Nick Mallett and 2003 World Cup winning coach Clive Woodward who have also said they have no interest.
Former Wallabies coach Eddie Jones is one high profile name that has publicly said he wants the job while former England international Jeremy Guscott has endorsed Northampton Saints Jim Mallinder to replace Johnson.
Despite not being mentioned as a possible candidate until now, Kirwan says he would be up to the challenge.
"As a head coach I think the job would be very exciting because of the quality of the Premiership - I watch most games - and the team would be an exciting one. There are a few things that as a coach I look at and think: 'Yeah, there's challenges but it's certainly a challenge that excites me'."
- HERALD ONLINE