"We play with a lot of structure but, sometimes, when we play a lot of the school teams, there's a tendency to lose that."
Friedel said he had put several names forward for the Hurricanes' under-18 squad.
WHS take a break from club competition this weekend and play a friendly against Massey White at home. They also have the derby against Wanganui Collegiate on July 29, as well as inter-school matches against Hutt Valley High and a touring English side in August.
Meanwhile, the Cullinane College and Wanganui City College 1st XVs have qualified for the Manawatu secondary schools premier grade.
City College kick off the season proper against Manukura 1st XV at home this weekend while Cullinane are away to Dannevirke High 1st XV.
City College also come up against Wanganui Collegiate in an inter-school match next Wednesday.