I think it's possible. The double is hardly unprecedented. The key is being able to win the Giro without being at your best. Obviously that takes a rider with a large margin over the rest of the competition
Contador failed in 2011 partly because of crashes in the Tour but mostly because he was too good in the Giro - hitting that level of form again probably is impossible. If he'd been at a much lower level in May but still good enough to win narrowly then he may well have been in peak form for the Tour
Contador failed in 2011 partly because of crashes in the Tour but mostly because he was too good in the Giro - hitting that level of form again probably is impossible. If he'd been at a much lower level in May but still good enough to win narrowly then he may well have been in peak form for the Tour