Strachan takes charge of the team for the first time in a competitive match following his appointment in January.
Much of the build-up has focused on the danger Gareth Bale could pose to Scotland, following his double in the October fixture between the teams which Wales won 2-1 in Cardiff.
Strachan was reluctant to identify Bale as the specific threat to the Scots, who are looking for their first win in Group A after four matches.
"The players are aware where there might be danger in the team. We've contingency plans for everything," he said.
"If we play to our potential, which they've shown throughout the week, then we're expecting us to cause problems."
When asked if the Scotland players should be looking to avenge the loss in Cardiff, Strachan said: "I don't know. You'd need to speak to them.
"What they've got to remember is the good bits about that game. They could have won the game, and should have won the game.
"Unfortunately the footballing Gods were against them that night. But I don't think they'll need any more motivation."