Please give the height of the tallest coach of the Montreal Canadiens.
the tallest refers to MAX(height); Montreal Canadiens is the name of team;
SELECT T3.height FROM Coaches AS T1 INNER JOIN Teams AS T2 ON T1.year = T2.year AND T1.tmID = T2.tmID INNER JOIN Master AS T3 ON T1.coachID = T3.coachID WHERE T2.name = 'Montreal Canadiens' AND T3.coachID IS NOT NULL ORDER BY T3.height DESC LIMIT 1