Bravo may not be good enough to bat at 6, but he most certainly isn't good enough to bowl as part of a four-man attack. If there's noone better then that's okay, it's not like the player batting at number four (whichever of those you choose) is going to add a great deal to the side either. Hum...
I'm not sure, I like the look of this line-up and have been a fan of WI selecting a balance in the side like this for a good while now.
While it may look a little negative at times, in terms of if they have the quality to take 20 wickets to win Tests, the first I would look to do with the WI side (more so perhaps 12 months ago) was become a more difficult team to beat. And with this side selected, Bravo in at 7 and Ramdin at 8, it certainly gives good depth in the batting department.
Having persevered with Powell for so long, it does lead me to believe that there is very little quick bowling in the Caribbean that is up to international standard. Therefore the inclusion of Bravo instead of Powell strengthens all three disciplines and makes WI stronger. Are there better or more consistently accurate bowling options than Bravo ? With Bravo as a fourth bowling option, that still leaves the part-time offerings of Nash, Gayle, and Hinds/Simmons. Not the most penetrative WI attack admittedly.
In terms of the number 4 position, I think the player selected here should be given time and a chance to acclimatise to Test cricket. Whether they should bat 4 is debateable, splitting Nash and Chanderpaul and not allowing them to bat together should go some way towards bringing the crowds back to the grounds.
If there is a viable third quick bowling option, I would seriously considering passing on a specialist spinner, and making best use of Gayle and Hinds, certainly in England.