The playbook names are just that, names. Our production department watches film of NFL and puts together those playbooks based on the plays that the teams run / coaches call during the season. If you are creating your own coach, or even if you are starting from an existing coach, I would recommend choosing a play book to match your style rather than your name.
The draft classes are for the most part random (except for the first few as I remember) so your guy could come up anytime. Admitably I'm probably not the best to comment here. One of the forum guys should be able to help you out.