Assessing Casillas' troubles

Everyone has seen Iker Casillas' fall to pieces at the World Cup right now, and a lot can be said about what happened. Personally, I think there were multiple factors, and getting demoted to the bench in favour of Diego Lopez didn't help matters. It was going to happen, and it did. So to summarise about my thoughts, I've summed up my thoughts below, to save me writing (and you reading!) paragraph upon paragraph:

• He did make some great saves, but once his team had given up the effort, things were going to go bad from then on in
• You could see that his confidence was hit and spiraled out of control: for a goalkeeper to be at their best, they have to be really certain in their ability and Casillas was second-guessing, self doubting, and not playing as commanding as we have seen him in previous world beating form (electing to punch instead of catch etc.)
• Spain were playing a higher line and recycling the ball more through the back four, forcing Casillas to play as a passing sweeper - something he doesn't do, and what Valdes is best at actually - which got him caught out in the thrashing in the first game to add to his woes
• Casillas only got to play in cup games this season, which is not enough to expect to be at peak performance for a World Cup; friendlies maybe, but not when you have the expectant winners to continue their reign! He really should have cut ties with Madrid and looked for regular playing time elsewhere. Cesar looks fine, but the MLS would tie into a strong enough build up to peaking for Rio versus a significant layoff
• Valdes' injury at Barca really made a difference; coming off a strong season, he really could have come in straight away and played as the sweeper role as well as expected to have made great stops as he had been in La Liga had he been fit!
• The coach needed to be more brutal and either ask Casillas to look elsewhere for match time if he wanted to play at Rio, or to make a choice to bring in another goalkeeper. Cillesen is playing great for Holland and many would say that Krul and Vorm are better keepers, but he was forced into playing due to their injuries, and has been consistent for Van Gaal so far and could see them all the way through to the finals
• The pressure on such a celebrity figure like Iker has a great impact on the sports psychology of goalkeeping. The more stress packed up on him can make things even more tricky with decision making as he totally lost self confidence and therefore his team lost confidence in him
• Having broken into the first team at Real Madrid at incredibly young age for a goalkeeper, the last nagging question is: has Casillas peaked to soon? Are his best days over? For goalkeepers, 30s are their prime time, but Casillas had most of his best seasons before that period. And if we look to other sports, like ice hockey, Jonathan Quick didn't become the starter at LA until he was 26 and has won 2 Stanley Cups in 3 seasons, whilst Fleury is also regressing. Akinfeev is struggling; is peaking-too-soon showing similarities here??