Fans are fuming against the board and have been for a couple of years. There's been little investment into the squad, despite player sales, which has seen Celtic fall in European competitiveness to embarrassing lows and lose out on 10 titles in a row to Rangers. Fans also felt Lennon was a yes man to the board and are finding Ange's public requests of signings refreshing. Most fans understand Ange was walking into a poison chalice but if the football is good and they keep up with Rangers he'll be fine.
Unfortunately not doing well. With the competition shrinking to 32 from 48, the increase in quality has found them out. Hopefully they improve, otherwise the guaranteed champions league spit might be for one season only. It would be ironic if neither glasgow team win the league this year.