The Proteas have been badly hit by injuries in recent months, with Vernon Philander forced to miss the whole Test series against Alastair Cook's side, while Dale Steyn only played in one of the four matches.
Kyle Abbott has also struggled to regain full fitness, meaning De Lange is likely to be used at some stage during the five-match ODI series, which begins in Bloemfontein on Wednesday.
"Marchant gives us more options with our fast bowlers - because there is no Steyn, no Philander, no Kyle Abbott," said Domingo.
"We need to manage the workloads of [Morne] Morkel and [Kagiso] Rabada, who have played a lot. We need to broaden our fast bowling base for this series. We have had a lot of injuries of late.
"Not having Dale and Vernon was a big blow, but it's an opportunity to test the depth of South African cricket and to provide opportunities for the fringe bowlers to step up and put in some good performances.
"The big concern is the fact that Rabada and Morkel have played a lot of cricket of late and have bowled so many overs - we need to manage them over the next few days."
De Lange featured for South Africa A against England in a warm-up match on Saturday, taking 2-69 from 10 overs as the tourists romped to victory by 163 runs.