compelling pitches?
while watching Ted talks, I met with this sentece: As a child concert pianist, she honed an icredible ablity to develop muscle memory. Now she's the fastes typise she knows. Before becoming a writer, Noah was a finacial planner. She had to learn the finer machanics of sales when she was starting her practice and this skill now helps her write compelling pitches to editors. ...
The lecture was about advantages about being mutipotentility.
I don't make out the last sentece. what do her practice and to help her write compelling pitches to editors mean??