1) Obama's plan states that minorities are "underrepresented"
2) To make that claim he must be able to define what "underrepresented means (eg. blacks make up 3% of all surgeons)
3) If he can define "underrperesented," then logically, he would know what "appropriately represented" means (eg. black should comprise 15% of all surgeons).
4) Whatever he defines as "appropriately represented" is the number that his plan is striving to achieve. You know...his goal. His...ahem, QUOTA.