Sry man, you have got it all wrong.
Firstly if you look at the stats of all the bowlers used (that have played more than 1 tests so thus Andre Russell & Cottrell would be ignored) by the windies since Sammy became captain officially during the Galle test of 2010 vs Sri Lanka to the just concluded Kolkotta test you would see Sammy's bowling average is among the worst.
Rampaul:
13 tests, 45 wickets @ 28.13
Roach:
16 tests, 59 wickets @ 26.84
Best:
7 tests, 20 wickets @ 23.30
Shillingford:
8 tests, 45 wickets @ 25.46
Edwards:
12 tests, 43 wickets @ 33.44
Gabriel:
3 tests, 10 wickets @ 17
Bishoo:
11 tests, 40 wickets @ 39 & was ICC emerging player before Sammy bowled him into the ground
Permaul: 10 wickets in 3 tests @ 32 -
Veerasammy Permaul | Cricket Players and Officials | ESPN Cricinfo
Narine: 15 wickets in 5 tests @ 48 -
Sunil Narine | Cricket Players and Officials | ESPN Cricinfo. However most cricket fans can appreciate he is better bowler than these figures suggests.
Sammy has
50 wickets @ 39.12 with ball in his 26 tests as captain, along with scoring 897 runs @ 23.00 .
Sammy is good captain, but as others have articulated also he is no Mike Brearley type brilliant captain that the windies can do like what England did in 70s/80s & can simply just pick on the sense of some amazing tactical & man management skills that he has. This theory of "Sammy the captain" has been disproved already many times.
He simply is not or has never been good enough for test cricket. He is only good enough to captain & play in the T20/ODI teams. Simple stuff.
I agree with you partially,
There have been guys who have done well comparatively since the time he has taken up captaincy, although their overall record might not be that impressive but their recent performance has been quite good.
But having said that, Sammy doesn't feature in the team as a front line bowler, nor does he qualify as a top order batsmen. He is there for his overall contribution to the team. And talking about captaincy, if not Sammy, then who? Who looks good enough to captain the side? Chanderpaul is 39, the rest of them aren't matured enough to lead the side.
Your point about Sammy's bowling since the time he took up captaincy is very valid. And that is exactly what I think, if he is in the side, he needs to start contributing more.
If you take a look here,
Bowling records | Test matches | Cricinfo Statsguru | ESPN Cricinfo
most of the time he ends up under utilising himself, he takes himself off from the attack very early and doesn't bowl long spells, whenever he has bowled a fair amount of overs, he has been amongst wickets. He needs to back himself and bowl long spells and not get too concerned with his captaincy and team management.
Batting at number 7 or 6 would give him a bit more time at the crease, and that would also put a lot more responsibility.
The main problem for WI is the lack of consistent batsmen in the team,
Chanderpaul is batting at 5 which is strange and inexplicable considering his form, his experience and the fact that no other batsmen looks good enough to bat at no.3 except him.
Ramdin's spot in the team is also a bit of a concern, he doesn't look like he can contribute regularly with the bat in a team which is already struggling with their batting.
If they have a settled top 6, than they will be a very difficult team to beat.