"For nine players, it was their first time at the Commonwealth Games," he said. "When you put that into perspective, they will be good for Rio."
While Tietjens insisted on selecting contracted sevens specialists for the competition, South Africa's line-up boasted international XVs star Cornal Hendricks.
Tietjens maintained his stance that XVs players are not conditioned to the correct levels for the short-form sport. "I brought one Super Rugby player in Pita Ahki and he blew a hamstring after two or three minutes against Canada," he said. "That was his tournament over and the conditioning levels probably weren't there."
Yet Tietjens has still expressed a willingness to look at Super Rugby players with a view to the Olympics.
"If we play very well and win the Rugby World Cup, which would be awesome, then you have a lot of players who may put their hand up and say: 'yep, I'm keen'," said Tietjens.
"There's been a huge wish list sent out to all the players who I consider could be a real contender for the Olympics. They'll make a decision about whether they want to be considered and, if they do, then sevens becomes their priority in that particular year."