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: San Francisco 49ers
Organization Active years

Number of head coaches 21
Total number of coaches 195
Average Tenure 4.00 years

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Buck Shaw                                                            
Lawrence Shaw                                                            
Red Strader                                                                    
Norman P. Strader                                                                    
Frankie Albert                                                                  
Frank C. Albert                                                                  
Red Hickey                                                                
Howard Hickey                                                                
Jack Christiansen                                                                
Dick Nolan                                                             
Monte Clark                                                                    
Ken Meyer                                                                    
Pete Mcculley                                                                    
Fred O'connor                                                                    
Bill Walsh                                                           
George Seifert                                                             
Steve Mariucci                                                               
Dennis Erickson                                                                   
Mike Nolan                                                                 
Mike Singletary                                                                  
Jim Harbaugh                                                                 

CoachPosition
George Seifert Head Coach
Ray Rhodes Defensive Backs
John Marshall Defensive Line
Jerry Attaway Physical Development Coordinator
Dwaine Board Defensive Line Asst.
Neal Dahlen Coaching Administrator
Jon Gruden Offensive Quality Control
Tommy Hart Defensive Assistant
Mike Holmgren Offensive Coordinator/Quarterbacks
Al Lavan Running Backs
Sherman Lewis Receivers
Bobb Mckittrick Offensive Line
Bill Mcpherson Linebackers/Defensive Line/Defensive Coordinator/Asst. Head Coach/Defensive Asst.
Lynn Stiles Special Teams/Tes/Offensive Line Asst.
Bob Zeman Linebackers