The under-fire Parkhead boss saw his players excel on the European stage as they netted twice in the first half through Mohamed Elyounoussi.
The second half was a very different story with Lille pilling on the pressure, ultimately pulling one back on 67 minutes through Mehmet Celik before Nanitamo Ikone earned the hosts a draw with a deflected strike with 15 minutes remaining.
Lennon made a triple-change in the last 10 minutes with the visitors altering their formation from a 4-4-1-1 to a 3-5-2 which helped stem the tide, though Bonner feels it should have been made sooner.
He said on BBC Sportsound: “It looked to me like [Oliver] Ntcham ran out of legs before he was taken off. I was surprised Scott Brown was taken off but they obviously felt he was running out of legs too. [Ryan] Christie came off as well.
“I think they were maybe the right changes to make but they could have happened ten minutes earlier.
“They went with the three-at-the-back but I didn’t mind that. It seemed to help and change things in their favour with them having a couple of chances near the end there. It’s good that they have that flexibility to change things.
“He maybe should have made them a little bit earlier because they were under the cosh and every time Ntcham got the ball he was almost falling over it, giving it away.”