Bangladesh skipper Mashrafe Mortaza has admitted that his side had fallen "20 to 30 runs short" in their innings, after being beaten by eight wickets in their opening Champions Trophy group clash against England at the Kennington Oval on Thursday.
Finn got the nod after taking two wickets in front of two selectors for England Lions in their 144-run victory over South Africa A at Northampton on Saturday.
Finn on the other hand is an experienced player across all formats of the game for England, having taken 102 wickets in ODI's, 27 wickets in T20's and 125 scalps in Test cricket.
"If we rushed him, he might have played the last game of the (South Africa) one-day series but we didn't want to rush him", he added.
The good news for Bangladesh is that their batsmen are in good form.
"In worldwide cricket there are always going to be tough times - I have had plenty before in the past - and you have to remain confident, keep backing your skills".
"It s a tough one to take, right at the start of a tournament which we have been building up to as a team for a while. I never take a backward step and try to be negative or defensive", he said.
Finn said: "I think we are very fortunate to be looked after from a security point of view".
"I thought Heady did well, but I have been working hard on my bowling and hopefully I will get an opportunity at some stage", Maxwell said. In their previous two ODIs at the ground they played just one frontline spinner - Adil Rashid against Sri Lanka and Liam Dawson against Pakistan - so Rashid, who was omitted against Bangladesh, could be sidelined again.
The tall right-armer, once deemed "unselectable" by England during the 2013-14 Ashes summer, Finn comes in ahead of Stuart Broad, whose cause was championed by former England captain Nasser Hussain, and Toby Roland-Jones.
The other player who was in the running was Toby Roland-Jones, who made his global debut in the third ODI against South Africa at Lord's on May 29. "So for us now it's just about making sure that we're playing each game like a final and winning the next two", Smith said. I knew that James Whitaker and [selector] Mick Newell were there watching me.