Shouldn't they have learned this back in law school?

A law firm in Philadelphia is making all its incoming associates receive further job training before they'll be assigned to client matters:

Rather than immediately assign the incoming lawyers to client matters, the firm will enroll its hires in a new training program that will provide courses on taking depositions, writing briefs, and meeting client needs. The instructors will include Drinker attorneys, professional development staff, and firm clients. The 37 first-years also will shadow partners' client meetings and court appearances. The associates may handle some client work, but at significantly reduced rates.

They need training in writing briefs? After three years of law school? Do you think some of them will get their spelling errors marked with a red pen by the professional development staff?