You can't generalize about all players at all positions when talking about limited position coach positions. Nor can you generalize about a player's ability's to coach, relate to players, or understand offenses and defenses. Sammy has shown in-depth understanding of both sides of the ball, player responsibilities, and why play's were successful and why they were not. He's a great communicator. Far more enlightened and entertaining to listen to than 90% of the schmucks on here.
Your criticism of posters who believe former great players should be brought in as a position coaches was based on, and backed by, a generalization about "players" becoming coaches. My criticism of that response was regarding only one of the players identified, Sammy Akem. He has the tools many of today's great coaches at all levels possess. I never said your generalization was not correct, just that it didn't apply to one of the players noted.
That said, where do you think former players who become great coaches get the experience to take them out of your generalization category about all players? Oh yeah, they are hired as position coaches. Try to find an NFL coach who never played high school, college or pro football, and then then come back with another generalization about that miniscule number.