If Bangladesh's spin attack was so great they could have atleast won their side a test against Afghanistan, of all teams. And that too at home.
I don't know what to make of your analysis. I don't think its that simple. India continues to have the flattest of flat wickets where batsmen smash triple centuries for fun. Yet for quite some time they have been churning top-quality fast-bowlers. I think the problem lies with the system. I'm shooting an arrow in the sky here and I may be wrong but my sense is that the quality of cricket in Bangladesh domestic cricket is quite poor. There are very few batsmen and bowlers of note. And the ones that are of note and have done well be it, in DPL or whatever the Bangladeshi equivalent of QeA Trophy is, have already been exposed internationally.
Therefore really the only choice Bangladesh have is wait for a great natural talent to arrive who can even be fast-tracked to the national side to accelerate his growth as a player. But I don't know how effective the current Bangladesh domestic system will be when it is full of the same players who have played for Bangladesh and failed to maintain a place in the side, or aren't good enough to even make that side.
Afghan’s spin attack is much better and they won a vital toss - there was only one Test, therefore BD couldn’t have made a come back. These examples will backfire for Pakistan actually (again Pakistan comes to example) - it’s not that Bobby Mughabe’s ZIM had better pacers in 2013, nor even in 1998 ZIM had better pace attack. Or at Harare 1994, when ZIM pacers got better of PAK’s combined innings for the cost of 4 ZIM wickets on their second year of Test cricket. I guess, this will explain the Afghan Test part. It happens - not taking any credit out of Afghans here at all.
You have no clue about Indian tracks - actually I am surprised here. Try to figure out first what India has done to their wickets, you may realise the difference between true wicket and dead wicket. On a contrary, by that logic of yours, PAK should have the best phast bowling attack in world now with the wickets used there in domestics - top bowlers were averaging 10-12 in FC season .... but it wasn’t happening to be honest. And further on that note, playing on those wickets, against that quality of bowling, PAK batting should be rocking now .... you know.
One thing I agree - the quality of BD domestics is quite low. But, it has to develop over the years - for a fact, there was no four day competition even 16-17 years back (true -BD got Test status without having a FC system!!!!), which is happening. Each year, average age of FC season is reducing for last 6-7 years - that’s because older players are phased out by younger players who are technically better than their predecessors. It’s a marginal improvement, which can’t be seen definitively, because the gap was much wider at the start.
Coming to unleashing fast bowlers, I don’t think it’s going to work that way. Bangladesh may talunt bahoot nahin hai- we’ll have to try conventional way; the way India improved their fast bowling over decades.
First step - being pacers in FC cricket, which they are doing. At least 40% overs of a FC game has to be bowled by pacers, but no pacer can bowl more than 19 overs a day, means they’ll have to pick at least 2.5 pacers for playing XI. 5-6 years ago, it was like Indian Test team of 1960-70s - likes of Soumya Sharker taking the shine off, then 80 overs of spin
Second step - they are putting grass on wickets on firm base for FC games so that there is bounce & pace on the track. It’s not evident in international cricket because giving green tops to even ZIM will backfire (it did at Sylhet when Jarvis & Sibanda ran through the batting) - so, they are planning to play Test cricket on dry turners, but for ODI, taking out the grass and making it absolute belter. Last ZIM ODI, both teams could have scored 350+ batting first
Third step: involve technically qualified coaches, which they are doing. Before COVID cut down BCB’s wings, there were at least four qualified level 3 or above coaches were working with BCB age level pacers, the peak of them is Ottis Gibson. However, this one is the toughest job - suddenly attaching top coaches to 23-25 years old (officially) pacers won’t do Jack (it’s not doing somewhere else as well...); so it has to be next generation, pacers in the age bracket of 16-19. They are trying that, but it’s not easy - lots of other factors has to change - diet, conditioning, life style....
Fourth step: develop a world class high performance centre - it’s not regular academy to teach kids basics. Rather, top pro with adequate technology & biomechanics working on young but physically developed pacers. This one is long away - they do have an HP centre with couple of English pro, but it’ll deliver at least 5-6 years later.
Finally - mentoring, on field guidance .... this one will need at least 10-12 more years.
If anyone thinks that there are other ways, I guess they should focus on talent part.
Regarding BPL - it was one of the most successful T20 tournament, because it was serving its purpose. And, it didn’t have any damn impact on BD cricket. This year, they have dropped BPL not because suddenly BCB or BD has become pauper, rather BCB has figured out with COVID protocol, spending that much money on BPL isn’t worthy - they didn’t close FC tournament, neither premier List A tournament, rather replaced BPL with a somewhat T20 tournament; you can understand where BPL stands on hierarchy. The quality of BPL has absolutely to bearing on BD cricket and I am happy with that - I guess you should realise focusing too much on these PLs & SLs .... where it can take a countries’ cricket.
Only take out from your post is that BD needs to improve the domestic FC standard - if you can add value to that discussion, you are welcome, I have whole weekend for you; but it has to be a worthy discussion.... not talunt route.