Sentence 1: Tony had been working a stressful job for a few months. 
 Sentence 3: He tried many things to keep it from balding 
 Sentence 4:  Still within a year he was nearly bald 
 Sentence 5:  Tony decided to quit his job right then and there 
 Option 1: He began to notice his hair thinning out. 
 Option 2: He decided to quit his job and found a less stressful one.