The pair are so fresh to the Black Caps their profiles pictures are absent from the official website.
Ingram made his debut in the twenty/20 match against Bangladesh in Hamilton last Wednesday and McKay two days later in the opening one-dayer in Napier.
Both have made a splash, albeit against gentle opposition.
McKay picked up two for 40 and surprised most with his pace, and Ingram scored 20 not out and 69.
They will get another opportunity against Bangladesh at the University Oval today.
Vettori regards Ingram as an exciting prospect and believes McKay has the pace to be successful at international level.
McKay's quickest delivery, if you believe the speed camera, clocked 146kmh, drawing comparisons with fast bowler Shane Bond.
"I think he can be on a par with Shane [in terms of pace]," Vettori said.
"And we know how devastating Shane can be.
Shane brings something different in terms of his accuracy and his ability to swing the ball so much.
But Andy can certainly bowl as quick as him."
While Ingram's selection was not a great surprise - the Central Districts opener has been prolific during the past few summers - McKay was a real bolter.
"I probably drove [his selection] myself after facing him in the HRV Cup," Vettori said.
"He was definitely the quickest guy and, to be fair, I think that makes a real difference when you step up to international level.
So we took a chance on him because of that pace.
"If he can balance that with some control, and obviously a bit of experience in the international game, then he could be a handy asset for us."
McKay made his debut for Auckland in 2002/03 but has not played a lot of first-class cricket with just 24 matches under the belt.
He still does not have a five-wicket bag.
Ingram, by contrast, has forged an impressive domestic record.
He has 11 first-class 100s and 3904 runs at an average of 36.83.
But it was his mammoth undefeated innings of 245 in a 428-run first-wicket record stand with Jamie How which forced his selection.
His stand and deliver technique has its critics, and the real test will come later this month against Australia, but so far so good.
"It's always nice for a guy to put so many runs on the board and then get picked, and then to do well in his first couple of games.
He is pretty sure of his game and understands what he needs to do . . . and is starting to replicate that in only two games for New Zealand."
The Black Caps had a comprehensive 146-run win against Bangladesh in the first of three one-dayers in Napier on Friday and the tourists have a lot to do to bridge the gap.
Bangladesh captain and star all-rounder Shakib Al Hasan acknowledged his side has some ground to make up.
"I think we bowled well for 40 overs but did not bowl well in the power-play," Al Hasan said.
"We don't know how to bowl at the death and are still learning. That has been a problem for the last six or seven months.
"Our batting has been good . . . but we didn't bat well in the last game. That can happen but hopefully we'll come back well."
The long flight from Bangladesh contributed to a woeful showing in the twenty/20 and the tourists have not been helped by the weather, which has prevented them getting in much practice.
Vettori will bring up his 250th game today while the University Oval will be hosting its first one-dayer.
It is also the first one-dayer staged in the city since February 2004.
