I'd like to echo Szuper and Rose's comments as well.
Yes Bob Cole hates the Sens, yes he's biased towards the Leafs, but that is not the main reason he should go.
The reason he should go is because he is incompetant, unoriginal, stale and boring, his attitude towards the Sens is just the icing on the cake as far as I'm concerned.
He frequently screws up obvious facts in the game, player names, penalty calls, the score and various other stats. He has the same 2 or 3 adjectives/adverbs he uses for everything including my personal favourite "smartly" which is barely grade 3 English in my book.
He had his day, now he is senile, get him off the air.