The Rossies suffered a surprising four-point Connacht football championship semi-final defeat to underdogs Sligo on Saturday.
It followed manager Evans’ earlier declaration in the wake of promotion to Division 1 of the Allianz league that they were building towards an All-Ireland title challenge.
But Curran claimed that, in the wake of the Sligo performance, it’s time for ex-Tipperary manager Evans to leave the job.
“In John’s case there’s no doubt he’s confident at talking himself up but is he a good coach, a good manager? I would say that he’s not,” said Curran.
“He’s had to bring in Liam Kearns over the last 12 months (to his management team). We did think there was a structure coming into Roscommon’s football over the league.
“But it’s gone backwards based on yesterday’s performance. It seems that kicking a football in Roscommon, in a Championship match, is nearly a crime. I think 75 per cent of possession was through the hand pass only. It was slow in build-up and methodical and Sligo took full advantage of it.”
Curran was speaking on RTÉ Radio’s ‘The Marty Squad’ and was joined by former Sligo player Eamonn O’Hara. Pundit O’Hara apologised for posting a joking Tweet on Saturday night about Roscommon’s defeat.
He tweeted: “What’s blue and yellow and goes ‘beep beep beep’ every July? The Roscommon bus reversing into its garage for yet another year!”
Speaking last night, however, he apologised to any Roscommon fans who took offence.