South Australia (SA) are facing a battle with Western Australia for the Shield's wooden spoon in their final match of the season starting in Adelaide on Thursday.
Flower will captain the side for the first time in the absence of Test player Darren Lehmann and injured Greg Blewett.
Flower said regular failures from SA's batsmen were the cause of the team's lowly standing, and he was as much as fault as anyone. "I haven't delivered the goods for South Australian cricket that I could have and should have," Flower said on Wednesday.
"That's why I was brought, to bolster the batting and give some sort of consistency to it.
"I haven't delivered on that front, that's been frustrating, but we can't run away from those sort of problems, I've got to front up and come back better next year." Hailed as a potential batting saviour for a brittle line-up when he was signed at the start of the season, Flower arrived in Adelaide with a formidable record.
He scored 4,794 Test runs for Zimbabwe in 63 matches, at an average of 51.54, with 27 half-centuries and 12 centuries.
But for SA, he has scored just 321 runs from six matches at an average of 26.75, only twice passing 50, and has missed three matches with a broken finger.