Steve Hansen said he would have been comfortable for McCaw to have gone into the Rugby Championship with a build-up of club rugby. Instead, McCaw has played an 80-minute match for Christchurch and about 25 minutes for the Crusaders - both off the bench. His last match before what will be a highly anticipated clash at ANZ Stadium is likely to be a warm-up fixture for the All Blacks against a Wellington XV and Canterbury XV at the Hutt Recreation Ground.
Blackadder, asked at Waikato Stadium whether he thought about bringing McCaw on earlier, replied: "It was crossing our minds to bring some impact. Our bench added a fair bit of impact, but I thought Matt Todd was tracking pretty well. He was in all the right places and he was doing the job. But it was my decision [to not bring on McCaw] and I think I got it right."
The McCaw return was just one of several difficult decisions Blackadder has had to make concerning his All Blacks this season. Another was the dropping of fullback Israel Dagg.
And he is likely to be in a position to make several more at the Crusaders over the next two years. It is understood that Blackadder has agreed to stay on until 2015, by which time he could look for a different challenge.
He will spend this week in debrief meetings with his players knowing that once again his team would have had a very good chance of claiming their first title since 2008 if they had beaten the Chiefs in Hamilton. A victory at the same stage last year would have led to a final in Christchurch against the Sharks. A win on Saturday would have put them into a final against the Brumbies in Canberra, a repeat of their round-robin clash in which they were comprehensive victors.
Blackadder would have at least been heartened that his team had reached the semifinal with momentum behind them, a change to recent years. In Blackadder's five seasons at the helm the Crusaders have been beaten semifinalists four times and beaten finalists once, their loss to the Reds in Brisbane in 2011 the closest they have come to adding to their seven titles.