Jones has always been a real handful for lower-order batsmen, mainly because of his ability to reverse swing the old ball at speeds of 85mph and above.
At Lord's, though, he bent the nearly new ball away from right-handers, late and quick, to hasten Bangladesh's demise.
Boycott was moved to say "the boy has something special" while
Fletcher described his performance as "very encouraging".
Opening the bowling for Glamorgan this season, rather than coming on as first or second change, has clearly helped Jones to develop - and he doesn't intend to stop now.
"I want to become more of a rounded cricketer and give the skipper more options," said the 26-year-old, whose immediate reward for that
Lord's display is a place in England's one-day squad for the triangular tournament matches against Australia and Bangladesh.
The next task for Jones and Co, though, is to put Bangladesh out of their Test misery as quickly and efficiently as possible.
Two years ago, against a Zimbabwe team already falling apart, England ' christened' the Riverside by winning on the third evening.
If the weather doesn't help them, Bangladesh will do well to make this match last that long - and even better to avoid another innings defeat.
Officially, the England and Wales Cricket Board opted for a Friday start to the Test at Chester-le-Street in order to extend the gap between back-to-back Tests.
In reality, the decision was all about trying to use the weekend when spectators might be encouraged to come along.
They love their cricket in these parts, mind, and around 8,500 have paid up for Friday and Saturday, which means England's newest Test venue will be almost full.
A trickle of inquiries about tickets for Sunday just about dried up altogether, though, after Bangladesh's failure to reach lunch on the third day at Lord's.
If Harmison has his way the tourists, who were out of their depth in London, will be going under just as quickly this time.
"You can't afford to go soft in Test cricket so there's no question of us coasting or of the bowlers reducing their pace," said the Durham man.
Bangladesh have been stung by the severity and relentless nature of the attacks on their right to retain Test status. That just might produce the sort of reaction coach Dav Whatmore is hoping for.
But no one has more incentive to shine than Harmison. "It means everything to me to play a Test on my home ground," said Durham's favourite son, who took six wickets against Zimbabwe two years ago. "I'll just have to make sure I don't get too swept along by the occasion."
