In England in recent times it's often been the lower order's batting ability that has decided it, certainly when we beat world number one ranked India 4-1.
This time though it looks as if they're intent on playing three number elevens in Archer, Broad and Anderson, and with Bess not really getting any runs in his one opportunity in South Africa it could be costly.
Wood's late hitting ability combined with being one of the real stars with the ball in South Africa may be preferred to bring more balance to the side as well as real pace.
Old Trafford though is possibly the quickest wicket and maybe the tests there are the ones being earmarked for both Archer and Wood to play. Headingley traditionally favours seam and going with an all seam attack but one including real pace too, can't be discounted.
To be axed from the side after a tour when you topped the bowling averages with 13.58 and was third in the batting averages at around 47 would be massively harsh on Wood.