Obviously thinks highly of him. Likely would be his second string QB right now if they hadn't chanced putting him on waivers.
About 3/4 of the way down....
http://www.neworleanssaints.com/news-and-events/article-1/Quotes-from-Green-Bay-Packers-Head-Coach-Mike-McCarthy-on-Oct-18-/9d9eb252-6740-4ccc-834a-d4575c539730