Yeah that in itself was an embaressment, given the job in the showers after the cup final with Lawell saying he hadn't bothered to look at a single other CV as he knew Lennon was the man from the job. He managed to instantly deflate pretty much all the Celtic support in that very moment, in the midst of everyone celebrating a treble treble.
In short he's still there as he is a yes man and that's what Lawell wants, someone who won't rock the boat and and someone he can foist players upon with no discontent. That's why Lawell and Rodgers' relationship broke down, because Rodgers was a progressive, demanding manager who wanted to do things his way, the right way.
Replacing Brendan Rodgers with a man who was sacked at Bolton and Hibs was gross mismanagement in itself and we are now reaping what we've sown for that act of negligence.