Towards the end #279, the Muir Island Saga story was inconsistent because Chris said there was interference from the editor or Jim Lee (can't remember who), so that's why he left.
Jim Lee even has his name as co-writer, imagine that. Chris didn't even manage to complete his Muir Island Saga before leaving at ish #280.
If there weren't any interference from others, we would have many more years of great stories and new interesting characters.
Luckily, Gambit was created in ish #266, just one year earlier.
Later writers all focused on violence, guns and battle which I find really boring.
Chris's stories focused on mystery, new characters, character interaction, character development in addition to battle.
The only other issue that came close after Chris left was UXM 392 which included these elements.
Sorry, not a fan of Morrison's run, too much death and stories weren't that interesting.