Kevin Phillips claims Eddie Howe will have been given transfer ‘assurances’ before reportedly accepting the Celtic job.
The Sunderland icon, speaking exclusively to Football Insider, tipped Howe to raid his old side Bournemouth this summer.
Last week, talkSPORT claimed Howe has agreed to replace Neil Lennon at Celtic this summer.
In April, Football Insider revealed Howe had verbally agreed to take the position before having second thoughts.
Celtic have tabled what is said by Football Insider sources to be a “wonderful offer” to the 43-year-old.
Howe has been out of work since resigning as Bournemouth boss following the club’s relegation last season.
Phillips insists Howe faces a huge challenge and urged caution after his poor spell as Burnley manager.
“It’s a tough job for him,” Phillips told Football Insider correspondent Dylan Childs.
“He’s already shown when he went to Burnley, it didn’t work. So this is another challenge for him.
“It’s a big club and they want the league title, it’s as simple as that. Credit to him if he takes it.
“He’s clearly not afraid of the challenge or the pressure. It’s just whether he can get those players in over the summer.
“They need players who can fight for that title. I’m sure assurances have been made that the funds are there.
“Does he go back to Bournemouth and raid them? It’s not going to be easy for him, it’s going to be a challenge.”
Howe managed Burnley between January 2011 and October 2012.
He then returned to Bournemouth before leading the Cherries to the Premier League.