Tamim produced another sparkling innings
England bowled out Bangladesh cheaply to take control of the second Test but until Graeme Swann changed ends, the bowling was again disappointing.
James Anderson was off colour and there were some strange plans in place for Tamim Iqbal which did not work.
Bowling round the wicket with the new ball looked wrong and defensive fields gave Bangladesh's opener a boost psychologically - it made him think 'they don't like bowling at me' - and I thought this was an even better innings than his 103 at Lord's.
There were not so many silly swipes and he played some really good shots, aided though by England's confused tactics.
It is all about shot selection with Tamim.
He has scored two hundreds and scores so fast he does not have to worry about pressure building up.
He does give opposing teams opportunities and will go through bad trots but he's got such a good eye, he just needs the experience of knowing when to go for the big shots.
I think he can be even better than India's Virender Sehwag, who on his day is devastating but still gives the bowlers too much of a chance and has not been able to tighten up during his career.
Tamim is still young and definitely hungry, he is a determined, ambitious young man, and I would like to think in five or six years he will be a really fine attacking opening batsman, seizing the initiative but knowing when to adapt.
With Anderson from round the wicket you lessen the chances of an lbw or a catch at slip but England will have been encouraged by the performance of Ajmal Shahzad.
Shahzad impressed with three wickets on his debut
It is always interesting watching people make their Test debut - mine was not an easy experience because I did not get a wicket and I was constantly striving to show that I was good enough at that level.
But Shahzad got a nice straightforward catch to settle him in and after a first spell that was a bit nervy, took a wicket with a wideish one and then he was away.
He bowled at good pace and has a sort of slingy action which assists reverse swing. He has lots of enthusiasm, bowls a nice full length and is very promising. There is no reason why he should not establish himself in the team.
The question now is will England make Bangladesh bat again?
This is the sort of pitch where even a remotely cautious captain would not want to bat last.
England have always said they treat Bangladesh like anyone else and if it was Australia I do not think they would enforce the follow-on, so though I think it would be a positive decision by England, I will be surprised if they do.
Jonathan Agnew was speaking to BBC Sport's Jamie Lillywhite