After Woakes left the field having bowled just two overs, though, Plunkett and others rose to the challenge and Morgan senses they can do so again if necessary.
That said, Plunkett, who finished with four wickets against Bangladesh, is the leading wicket taker for England since the turn of the year with 24 in 10 matches, and should prove a more than able deputy.
"I thought he was terribly unlucky today", Morgan said.
Bangladesh threatened the same punishment in their first one-day worldwide on English soil in seven years by producing their highest score against England, and the eighth-best total in trophy history, 40 runs more than their previous best.
Courtesy Tamim's (128 off 142 balls) ninth ODI hundred and a 166-run partnership for the third wicket with Mushfiqur Rahim (79 off 72), Bangladesh shrugged off the disappointment of a batting debacle against India in the practice game.
Hales led their partnership, scoring freely in front of the wicket. The 166-run stand gave Bangladesh a flawless platform as a cameo from Sabbir Rahman (24) helped Bangladesh push the total past the 300-run mark in the 50 overs. Apart from Root's 133, opener Alex Hales made 95.
Morgan, however, was proud of the way England's attack coped with Woakes's absence. Root's unbeaten effort was also his highest ODI score.
The fall of Hales brought in Eoin Morgan (75 not out), who, along with Root, then continued the pace and added 143 runs to chase down the the highest target in the Champions Trophy with 16 balls remaining. "The batsmen did well, but it's true that we could have taken another bowler in the team", the Bangladesh captain began.
"So that contributed to what we wanted to - how we wanted to balance the side and how we sort of had foreseen them playing".
Victory came at a price, though, for the bookies' title favorites.
England, who came into this tournament featuring the world's top eight ODI sides as one of the favourites after making huge strides in white-ball cricket in the last two years, were given plenty to think about after Morgan opted to field despite sunny skies promising good batting conditions. He would definitely be a loss if he couldn't play. We need to identify the mistakes we did while bowling and we need to rectify them and make sure next game we are ready.
But Tamim skied to Jos Buttler and Mushfiqur holed to long on from successive Plunkett deliveries to halt the Tigers' momentum. Tamim sprinted in and took what appeared to be a brilliant diving catch, only for it to be waved off after the third umpire replayed the decision. Their departures stalled Bangladesh just when they needed to be surging.