Tietjens, however, seems to be happy with his progress and his physicality on defence. Williams copped some justifiable criticism from Murray Mexted earlier in the week, but he is unfazed.
"I don't worry about what's going on out there. I just worry about my teammates' respect and if my coaches think I'm on the right track," says Williams. "I'm really happy with how I've been playing and where I'm at at this stage. "
Tietjens is not thinking too much further than France, first up in their pool this afternoon, as they seek to overturn the three-point World Series deficit to Fiji.
"There's no easy games in Sevens now. The French led us 17-0 in Hong Kong and we've seen the improvement in (third pool opponent) USA from the last 18 months," he said.
Antonio Kiri Kiri, Josh van Lieshout and Teddy Stanaway return to the fold. Young Isaac Te Aute, fresh out of Rotorua BHS's champion First XV, will bring much needed pace to go with Regan Ware. Gillies Kaka will have worked on his distribution in a light physical training work after some slipshod passing in Hong Kong.
Janna Vaughan comes into the New Zealand women's Sevens team for the tournament in Canada, as they seek to topple series leaders Australia. The return of Tyla Nathan-Wong for the injured Kelly Brazier, also bolsters the side.