The move order 1.d4 d5 2.e3 Nf6 3.Bd3 e6 4.Nd2 c5 5.c3 Bd6 is very annoying because it discourages the key move f2-f4. Instead, White should play a different opening. He can enter a reversed Meran Defense with 6.dxc5, or a Colle System with 6.Ngf3.
Matt talks a little bit about the dangers of the Colle position that arises and suggests that White try the rare 8.h3!?