Organization behavior study

please read the Wolfgang Keller case  and answer these three question and write it in one page 

1. Drawing  on personality and behavioral leadership, who is Keller and what is his personality and leadership style like? Likewise, who is Brodsky and what is his personality and leadership style like?
2. Based on information from the case, what are two or three skills and knowledge that Keller and Brodsky each need to have in order to be successful in their respective roles? Based on our lecture of bias in evaluating performance, where might there be issues of bias in evaluating Keller and Brodsky?
3. Keller is faced with three options at the end of the case; what do you think he should do and why?