One oft-repeated excuse used by Brodeur fans (one of my commentors brought it up today, in fact) is that Brodeur was not the starter on Canada's national team in 1996, 1998 and 2002 because the other goalies had their coaches managing the squad.
In the 1981 Canada Cup, Scotty Bowman started Mike Liut over his own goalie, Don Edwards.
In the 1984 Canada Cup, Glen Sather started Pete Peeters over his own goalie, Grant Fuhr.
In the 1987 Canada Cup, Mike Keenan started Grant Fuhr over his own goalie, Ron Hextall.
In the 1991 Canada Cup, Mike Keenan started Bill Ranford over his own goalie, Ed Belfour.
Looks to me like the Canadian coaches certainly seem like they are able to evaluate their own guys pretty well. Maybe they were vocal in securing their guy a roster slot at least, but when the games started they played the guy they thought had the best chance of helping their country win.
Now what happened when Brodeur entered the picture?
In the 1996 World Cup, Glen Sather started Curtis Joseph, his own goalie, ahead of Martin Brodeur.
In the 1998 Olympics, Marc Crawford started Patrick Roy, his own goalie, ahead of Martin Brodeur.
In the 2002 Olympics, Pat Quinn started Curtis Joseph, his own goalie, ahead of Martin Brodeur in game one vs. Sweden, before playing Brodeur in all the remaining games.
Do coaches always go with their own goaltender? Quite clearly they do not. In fact, there has never been a Canada Cup or best-on-best Olympic tournament where a Canadian head coach picked his own current goalie as the starter, except when Martin Brodeur was the backup. Either it is one big conspiracy against Brodeur, or the coaches simply didn't think he was good enough. From the stories I have read from around those time periods, those coaches were not making a rogue decision against popular support - the consensus from journalists and fan polls seems to be that Brodeur just wasn't the best option.
If you want to argue that Martin Brodeur deserved to be the starting goalie at the 1998 or 2002 Olympics, then argue it based on his merits. Don't use the lame and insulting excuse that it was because of some sort of favoritism from the head coach, because the historical record is pretty clear that Canadian coaches do not have a record of being biased towards their own goaltenders in major international hockey tournaments.