Kitbag are in charge of the supply chain, but i am sure that they consult with the club. They supply kits for most of the major clubs in the world, American football, Ryder Cup, etc, so i am guessing they have a slightly better than crude procedure for estimating demand.
On what figures are you basing the low-demand period of 2013/4?
Sales are sales - they are up 65%! That means that there was stock to cover this - quite simple really. The overall demand was obviously higher than this but, as i posted originally, last December would you have ordered even more stock, given that normally you are left with unsold stock after the end of the season?
As pointed out, next year's kits are already ordered, so the supply chain is 6-8 months. Not sure exactly when the kits went on sale, but that would seem to fit in with date of February for getting new stock in. The supply chain is governed by the actions of Adidas/Nike, so people can blame the club if they like, but there is not much they can do.
On Friday Goodison Park is sold out. Will the people who can't get tickets be having a go at the club for not anticipating demand. On Sunday, we are going up to Newcastle for a live tv game and again, we have sold out. Should those who couldn't get a ticket criticise the club for not securing a bigger allocation? For Lille, Wolfsburg, and presumably Berne, the club worked to try to get the biggest allocation they could. Likewise with the kits, the club have tried to alleviate the problem. With what's been happening on the pitch recently, we have enough to be depressed about, so let's celebrate the fact that we have enough passionate fans who want to go to the game and wear the kit.