Leaders have to be intensely aware and be bold and flexible enough to adjust course ahead of impending changes.
Using KERS and the adjustable front wing is not particularly difficult. Once you've worked out where to use KERS to optimum effect at each track, and in which places you adjust the front wing, it happens pretty much automatically.
Most of the time, I'm playing right-handed players, so it's a little easier to adjust going back to a righty.
Italians are great improvisers. If something unforeseen happens, they throw up their hands, and they adjust.