As those adjustments to the line-up indicate, the result of all three matches heading into tomorrow's final day are perfunctory. Which is just as well for the champions, who are facing a mammoth chase to try and put the icing on the cake against the Stags.
They'll resume in the fourth innings today on 12-1, with a further 410 runs needed to take their fifth win of the season. That was after the Stags steadily batted themselves into a position of dominance before declaring on 323-4 late in the afternoon.
Dean Robinson retired hurt on 56, while Matt Sinclair (65) picked up yet another first class fifty, and Keiran Noema-Barnett was unbeaten on 69 to complete a fine match in which he scored 174 runs without being dismissed.
At Colin Maiden Park, Canterbury eventually drew their innings to a close on 363-6, with Rob Nicol (64) Peter Fulton (87) and Tom Latham (59) compiling half centuries.
In reply, Auckland went to stumps with a 233-run lead after advancing their second innings total to 151-2. Tim McIntosh (79) and Anaru Kitchen (71) will resume today as Auckland look to hold of Wellington for second spot on the ladder.
And that task will probably prove easy considering Wellington's predicament in Dunedin. Otago eventually declared on 519-8 this morning, a lead of 407 runs, and proceeded to rip through the Firebirds' batting lineup for the second time in the match.
A half century from opener Josh Brodie was the strongest resistance Wellington's batsmen provided and the visitors went to stumps on 207-6, still requiring 200 runs just to make Otago bat again.