MONTREAL — This was percolating over the weekend, and it boiled over on Monday morning. The Montreal Canadiens traded Tyler Toffoli to the Calgary Flames for a 2022 top-10-protected first-round pick, unsigned prospect Emil Heineman, a 2023 fifth-rounder and right-winger Tyler Pitlick , and it has the potential to be a good deal for both teams. Start with the Flames, who will benefit immediately from the transaction. In the midst of an impressive season that currently has them a point out of first place in the Pacific Division, already in possession of one of the deepest rosters in the NHL, adding the scoring Toffoli can provide was a primary need. The chemistry — with the coach Toffoli credits the most for his development, Darryl Sutter, behind the bench; with close friends and former Los Angeles Kings teammates, Brad Richardson, Trevor Lewis and Milan Lucic up front; with former junior roommate Sean Monahan at centre; and with former Vancouver Canucks teammates Jacob Markstrom ...