Tim Griffith sits in his scrubs in a lightly adorned examination room at Peachtree Orthopedics’ Cumming office, the same space where earlier in the day he saw a patient who had pitched in four baseball games in four days.
                                    
                                    
                                
                Beating the tag: Doctor in Cumming is trying to change the future of baseball
            
            
         
                     
                 
                     
                