Coach Trees / Coaching Pedigrees - Searching the relationships between coaches
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Coach Trees was founded in 2009 with the intent of using software to document the relationships between coaches.
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Current selected organization: Pittsburgh Steelers
Organization Active years

Number of head coaches 16
Total number of coaches 148
Average Tenure 4.47 years

Forrest Douds                                                                                  
Luby Dimelio                                                                                  
Joe Bach                                                                               
John Mcnally                                                                                
Walt Kiesling                                                                          
Bert Bell                                                                                  
Aldo Donelli                                                                                  
Jim Leonard                                                                                  
Jock Sutherland                                                                                 
John Michelosen                                                                               
Buddy Parker                                                                           
Mike Nixon                                                                                  
Bill Austin                                                                                
Chuck Noll                                                            
Bill Cowher                                                                    
Mike Tomlin                                                                                

Bill Cowher Head Coach
Ray Sherman
David Culley
John Mitchell
Lou Spanos
Mike Archer
Jim Haslett
Dick Hoak
Tim Lewis
Mike Mularkey
Kent Stephenson
Ron Zook