India has some very good young Pacers but we are trying guys like Saini, Chahar etc.
Is it the right move?
Currently, which format will be the best for introducing a young pacer?
There is always a question mark on the official age of Asian (& African) cricketers, therefore pacers should be introduced in domestic cricket before 19 and no, picking so called all-rounders for the sake of 10-12 extra runs/innings instead of specialist pacers is never a good idea. 4th pacer may be, provided that there is a genuine spinner in playing XI, otherwise at least 3, better four bowlers should be picked on absolute bowling merit in playing XI - Aussies do that and Lloyd did that, otherwise both Australia& WIN has/had the highest numbers of those "all-rounders", who can average 35 with ball & 23 with bat....
I think, young pacers should be blocked from T20 before the age of 23. They learn lots for "staffs" from T20 - slower ball, cutter ball, knuckle ball, split seem ball, slower bouncer/yorker, lolly-pop full toss..... only two things they forget from T20 - a solid stock ball that they can put 4-5 times every over on spot effortlessly and a bowling discipline according to the field to choke down batsmen and force them to play out of comfort zone when batsmen are not in a mad rush, rather trying to survive.
Ideally, a talented pacer should be in FC squad by 18-19, not necessarily playing every game, but bowl lots of net overs which'll help strengthen the body. The top 1-2 of every year or two should debut in Test before 23 and become regular by 25. Now, from a country of 1.4bn with cricket being followed like religion, you can understand the odds for making the national cut even for the best of the best... therefore no harm if young pacers can develop a little bit of batting as well, but his main focus must be to be the spearhead of the attack.
The pace bowling culture still hasn't matured in India, hence I have seen mistakes in pace bowling choices - wrong bowler, wrong venue, wrong format,wrong opponents ... which hardly happens for batsmen, spinners or WK picks - one reason previously was that Indian national tam was a reflection of domestic cricket - unless you can bat like Kapil, Binney, Madan Lal, Prabhakar, Chetan Sharma, Abid Ali, Ramacant Desai, Mohinder Amarnath ...... your FC career might be over in few years, therefore pacers like VRB Singh, Aviskar Salvi, Paresh Mohambrey ... disappeared in no time while Irfan Pathan tried to change career. May be one more generation like current bunch, things will finally change.