He's handling himself well tactically; my advice would be to work some more on starting pick theory. The entire game can be decided by picks.
I can help occasionally with a 1v1 or 2v2 match; also, if you haven't seen this resource, consider it your strategic 1v1 textbook:
https://docs.google.com/file/d/0B024HXqzvoGCejhhajNFa1ZOVlE/editHope that helps! :)