On what basis Bumrah was selected to play test for India? Does he has an outstanding FC record or was a top wicket taker in Ranjhi?
He had progressed from IPL to International T20s to ODIs to Tests. They had the liberty to give Bumrah, Kuldeep 2,3 seasons of IPL and domestic and then select them. Progression was slow and steady.
While we had a lot of gaps to fill in the team and that too pretty fastly and that is why a lot of players were selected from the first 3 editions of PSL while India already had a settled team so they were able to afford slow progression.
We needed a right arm quick, so we selected Hassan, we needed an opener so we selected Zaman, we needed a leg spinner who can bat as well so we selected Shadab. They were all necessities for the team and PSL provided it. Yes progression could have been slow and steady but we didnt have players in 2016 to compete well. While Shaheen forced his way through sheer talent.
Now with a a lot of settled players its gonna be difficult for new players to come in unless they perform outstandingly well or they can replace someone like Talat, Asif, Shinwari etc who were decent but didnt create that much of an impact in recent times.
JB is a methodical product of Indian domestic cricket - I understand you haven't checked his domestic stats. He is bowling brilliantly now and everyone relates it to be IPL product, which is not. Here is the details -
He started FC career OCT 2013, a cool 4+ years before his Test debut on JAN 2018. He has 138 wickets in 36 FC games at 24 average, which is brilliant in Indian domestic standard. Since his Test debut, he has played 10 Tests for 49 wickets and probably at most 1-3 additional FC games - so before his Test debut, he had like 23-25 FC games with 80+ wickets in 4 years. His FC career started with a bang - 7 wickets for 89.
He debuted in ODI on JAN 2016, in AUS tour when IND was rebuilding for next WC ... a cool 29 months later his List A Debut. He has 130 List A wickets in 69 games at 19, net off his ODI (78 of 44 games), it's like 52 wickets in 25 games - that's more than 2 wickets/game at 17 or so .... and he played most of these games between 2013-2016.
He debuted in T20 in MAR 2013, 3 years before T20I debut - his T20 stats are relatively poor 152 wickets at 23 from 131 games at 7.2 economy - his T20I stats are actually better than T20 stats.
These information gives 4 clues -
1. He is completely a domestic FC/List A cricket product - his IPL records are nothing significant, in fact poor than his T20I stats
2. BCCI selectors do identify talent and know how to phase out sell by oldies - 2/3 years of Domestic cricket should be enough baptism for a quality player to move to higher level at the right age - that's International debut by U23 - before Bumrah, it was Iyer, KL Rahul and after Bumrah it's Kuldeep, Pant. For PCB that filter is 10 years & official age of may be 29, sometimes like 32 - like this lefti guy Waqas recently debuting
3. IPL is far superior compered to this farce of T20I, where apart from PAK none plays full squad, hence Bumrah's T20I stats are poorer than T20 after significant games (his Test stats are statistical anomaly - built on 10 Tests in SAF, ENG & AUS on low scoring pacers' tracks - it'll get normalized after couple of years).
4. PLs & SLs are rubbish - only incompetent fools will use that as a selection tool. Latest example is Imrul Kayes - he is going to lead CV in this years BPL Final and despite massive ZIM bashing, he has missed out NZ tour ...... something (both) has made Asif Ali almost Josh Buttler.
Hope you can digest my hash "expert analysis"