Hill vs Siemian why is there a debate?

For me, its the entertainment of the unknown. I was intrigued with Hill's potential and eager to see him operate as a QB in Sean's offense which I got to see in the games last year and this preseason. I'm not quick or qualified to declare cap on a player's development and won't pretend to do so with Hill. That aside, I wouldn't mind seeing Siemian against the Falcons with a full week of reps and a tailored gameplan.

On a side note, I heard Peter King report that the Saints had fielded calls from several teams over the previous few weeks wanting to trade for Trevor. How advantageous was it that the club decided to hold on to him.