'Bazball's winning mantra facing biggest test of its resolve'

So here it is.

1,117 days after coach Brendon McCullum rounded up his players at Trent Bridge and said his side would go for an improbable win against New Zealand rather than bat out for a draw, England have the first real test of one of their most defiant mantras.

They need 536 runs on the final day to beat India in the second Test at Edgbaston – effectively an impossible task.

A more realistic chance of preserving their lead in this series is to survive with at least one of their seven remaining wickets intact, thus ensuring they leave Edgbaston with a draw and the series still 1-0 in their favour with three to play.

"Bazball's going to get asked the ultimate question tomorrow," former England captain Michael Vaughan told BBC Test Match Special.

"Are the team and the players going to go completely against what their natural instincts are to do?

"You've got to get what's best on offer. And what's best on offer at the minute is a draw."

After day one, Harry Brook doubled down, repeating what has always come out of this England dressing room on the topic.

"Everybody in the world knows we are going to try to chase whatever they set us," he said.

Only last week, bowler Josh Tongue said there was no scenario where a draw would be a good result during the first Test in Leeds.

The danger of going for a win is that it offers more opportunities to the bowling side and increases the chances of defeat.

But speaking after day four, assistant coach Marcus Trescothick appeared to present a different message for the very first time.

"The situation is challenging, of course it is," the former batter said.

"If you get to the point where you can draw the game, of course, we're not stupid enough to think that you have to just win or lose.

"There are three results possible in every game that you play."

Asked directly if there is flexibility to their previous-stated mantra, he said: "Of course there is, yeah, absolutely."

That India batted on into the evening session at Edgbaston suggested they were wary of England's ability to chase big scores.

The hosts completed a pursuit of 371 with five wickets to spare in Leeds last week and knocked off a record 378 to beat India by seven wickets on this very ground in 2022.

Four of England's best 10 chases in the fourth innings – and their highest two – have come in the three years under Stokes and McCullum.

None have come close to this task, however. The highest successful chase in Test history is West Indies' 418-7 against Australia in 2003.

Salvaging a draw on the fifth day is not simple either. England have only done so once in the past 12 years.

On that occasion, the fourth Test of the 2021-22 Ashes in Sydney, they started the final day with all 10 wickets in hand rather than the seven they have remaining here.

This Edgbaston pitch is also offering more spin and seam movement than at Headingley last week, plus some uneven bounce.

CricViz's PitchViz, which ranks the difficulty of surfaces from one to 10 with the higher number being more difficult, gave this track a rating of 4.6 at the end of day four, a deterioration from day one. At Headingley the day-four pitch was rated 3.7, having got easier for batting since the opening day.

So it is clear the odds are stacked heavily against England.

As for positives, there is some rain forecast in the morning which could reduce the number of overs they have to bat.

Batting has also been far easier against the older, softer ball throughout this match and this current lump of leather is now 16 overs old.

In England's first innings, India took five wickets for 85 runs with the first new ball and 5-31 with the second. In between, Brook and Jamie Smith combined for an epic partnership that yielded 303 runs.

"We have another 10-15 overs of the hardest point, before the ball gets a little bit soft, and we will see how we are going from that point," Trescothick said.

There will still be 24 overs left in the day when India get their second new ball shortly after tea – if England can get there.

In some ways, their approach on Sunday will be more interesting than the result.