Improv Thoughts

I was helping a student improvise over Doxy and just happened to write something like this on his chord sheet. It seemed to help him connect his ideas. What're you thoughts on this approach?

http://s1143.photobucket.com/albums/n634/JakeDaniels06/?action=view&current=Capture.png (not sure how else to post).

I see I missed an accidental or two in my hurry to get a rough shot at this up.

Thoughts?

-Bubba-