"Woody was keen to play and I think on the back of his delayed start this year, that was part of it," Lam said. "It's a bit of last man standing.
"Obviously after the loss last week we need some energy and some excitement to bounce back. We have put a bit of faith in some of the younger guys and then have the experience to come off the bench, which we are going to need at the end of the game.
"We were pretty embarrassed and gutted about it [the 59-12 loss to the Crusaders] and we know we have to bounce back."
Asked what he thought the reaction would be to having All Blacks on the bench, Lam suggested it could not be any worse than the comments about their work throughout the season.
"It's still a 22-man game and they'll come off the bench."
The alterations may not have finished, with a fitness test required today on Peter Saili.
Meanwhile, his younger brother, Francis, is one of three wider training group players, along with Hadleigh Parkes and James Parsons, picked for tomorrow's match at Eden Park.
Francis Saili will play at centre in his starting debut after a brief appearance as a substitute against the Stormers in the Blues fourth game of the season.
Lam was sure his pack would cope with tomorrow's challenge. There were players busting to test themselves further in Super 15 and the Blues were determined to rectify the embarrassment of last week.