This is purely a guess, but based on his solid performance this past weekend I think Haus will start this Sunday. Jimmy Wang also did very well in his first start, but I'm inclined to go a little slower with him and not throw him to the wolves in a starting role against conference opponents. Wang is still very new to college baseball, and just hasn't pitched all that much since high school.
Of course, Coach Penders definitely has a tendency to try to stick young talented pitchers into the weekend starting rotation as quickly as possible, but in Jimmy Wang's case, I think he needs some time to develop and grow into this role. Obviously, we'll see in which direction Penders goes on this.
After this weekend, two weekday starters will be needed. Assuming he doesn't blow up in his presumed start against Virginia, I would think one will be Colby Dunlop, who has done well with his last two relief stints. I think the other will be Jimmy Wang. The weekday starting assignments are a great little training ground for future weekend starters, and I think that is where Jimmy Wang will eventually land, whether it is later this season or next season. Joe Simeone returns to the bullpen where he sounded very comfortable in his relief stint this past weekend.
As I have said before, the starting rotation is a work in progress, but after this past weekend, I'm encouraged that it is heading in the right direction. It may not be great, but I expect it to be at the very least serviceable. Both Haus and Wang got into the 5th inning in their last starts over the weekend, hopefully they just need to build their arm strength to be able to go a bit longer than that.