Why not a contact period in Spring

The NCAA has Spring official visits for football. What I can’t understand is why the NCAA doesn’t change the recruiting calendar and allow a Contact Period in the Spring.

The Contact Period allows college coaches to have off campus face to face, in home visits with recruits.

This link is to the definition of the four recruiting periods of the recruiting calendar.

http://www.ncaa.org/student-athletes/re … ivision=d1

I’ve never heard any coaches or people in recruiting mention in the past but with this being the first year of spring visits I can see it being considered.