Yale's Jeffrey Sonnenfeld: Tim Cook's leadership still warranted at Apple

Come back. You might have heard this week analysts at Lightshed questioned this week whether Apple should replace Tim Cook and find a more quote product focused CEO, not one centered on logistics. And Tesla CEO Elon Musk seeks to disrupt the two-party system, forming that America party, sparking a call from Web Bush to for Tesla's board to step in.Let's bring in Jeffrey Soninfeld this morning. Yale School of Management, senior associate dean for leadership studies, also a CNBC contributor. Got two good ones ...