And this is from a KP fan...
BTW a genuine question, do you think England should have Bell and KP in the team for the next two home series against West Indies and South Africa
given the fact that neither of those two oppositions have a quality spinner and they would be playing at home?
Wouldn't be so sure about that. Bishoo and Tahir admittedly bowl too many bad balls, and thus neither could be classed as a top class spinner for now, but I think both have the potential, not only to trouble those two but to become quality Test spinners in due course.
The main reason KP and Bell are so clueless is that accurate spinners deprive them of scoring options and generally leave them psychologically on edge, so they eventually get out in all sorts of outlandish ways (just look at Bell's last couple of dismissals; he not only
looks like a tailender against Ajmal, but objectively
is worse than say Anderson against him; ditto for KP vs Rehman).
If I were the SA or WI skippers I would play them under the following firm instructions: "It's not variety, drift or flight that beats these guys, but accuracy. Just bowl your two stock balls religiously and on a sixpence. Do not drag any balls down leg side, give them anything short to cut or pull, or bowl any full tosses. (The odd half volley striving for a full length is acceptable and might even induce a mistake)". If I were the WI skipper I would also double up and play Naraine - who long-term has more potential - alongside Bishoo, with Rampaul and one other (whoever they reckon could most trouble these guys with both pace and movement off the pitch) as the seam attack.
As to your question I think that they both should be dropped and that whether the opposition have quality spinners or not should not come into it. The fact that they have two such liabilities in the team, who have not just slight weaknesses in certain conditions and against certain types of bowling, but become walking wickets under those parameters, makes a nonsense of England's openly-professed striving both to be the best in the here and now and to "leave a legacy".
The very idea of replacing these guys with the likes of Hildreth and Taylor seems to be taboo for some here, as if talk of replacing batsmen whose inadequacies have become plain for all to see is a joke. Let's wait to see the new guys bat before laughing. For me the biggest joke of all has been watching KP attempting to bat against Rehman and Bell attempting to bat against Ajmal. I can't remember anything like it since the days Cullinan vs Warne, and can't see how the new guys could possible do any worse.
Whether England will actually bite the bullet is another matter altogether.