One thing is for sure, if Bangladesh don't take a few wickets then England should win this comfortably. I mean let's face it, there may not be fielding restrictions, but if this were a 50 over ODI then you'd back the batting side to reach 209 off 50 overs easily, let alone off 54 overs. Sure there are not powerplays and all that, but it's not a demanding ODI total and the way you'd set about trying to defend it is by taking wickets.
Even if England hit a slow spell, as long as they keep wickets in hand then 100 off the last 20 should be manageable. That means 109 off 25-34 overs would do nicely with say two wickets down. I think England will be happier trotting along at a standard run rate of just over 3.0 rpo without losing a wicket than racing along at more like 4.5-5.0 rpo and losing wickets.
It would be a shame for Bangladesh if they lost this, England haven't really deserved the win. Bangladesh again batted with signs of ability but not being able to put it all together and get those extra 50 to 100 runs.
SEVEN batsmen in the 1st innings reached 30, four converted to 50 but only one got past 60 and even he didn't make three figures. 2nd innings FIVE batsmen got in, reaching 28+, and only two made 50 and one went past 52 and fell short of three figures - not that you can blame him too much. So in the Test TWELVE Bangladeshis got to 28, but only two got to and went past 60.
Of course if technology or the flawed referral system had been used by BCB then it could have been a comfortable draw or even a win for Bangladesh. I think they have not just shot themselves in the foot, but the moaning may continue long after so they've not so much shot the foot but blown it clean off! It will be interesting to see if it is used in the return series