Teams aiming to win the competition had to have a goalkicker capable of converting more than 80 per cent of his chances, Blackadder said.
While Taylor could be shifted to second-five with Carter moving to his more familiar position at 10, Blackadder said there was little point in changing a winning combination.
Richie McCaw, another senior All Black returning to the Crusaders from injury, might also have to spend at least another week in an unfamiliar position.
McCaw, who took the field in the second half last night following his six-month layoff with a foot injury, was likely to remain on the bench for Sunday's grand final rematch against the Reds in Christchurch.
Blackadder said the All Blacks captain had recovered well from his 24 minutes of action, but he didn't want to rush him back.
"I don't want to compromise him either,'' he said.
While the Crusaders took a while to get into their stride against the Waratahs, Blackadder said he was confident his side was moving in the right direction after a sluggish start to the season.
"We didn't quite start with the same intensity and accuracy as we have in previous weeks. We really addressed that at halftime and we were pretty happy with the outcome.''
With five of the Crusaders' seven remaining round-robin games in Christchurch, a guaranteed four points from a bye to come and key players returning from injury, Blackadder's team is well placed to finish strongly. They are one point behind the Highlanders in third place on the New Zealand conference.