playbook, new playbook

Meaning 1
Playbook is a book of strategies: a compendium of plays for the team, whether football or other sports. However, it is so common, that it is used in other speech, such as business and dating.
Sentence 1
Please play defense according to the playbook.
Meaning 2
A new playbook: New strategies for your plan, whether for business, college or a girl or boyfriend.
Sentence 2
You need a new playbook for your new girlfriend.