you obviously don't understand the nuances. Zuculini has come straight from Argentina, and whilst promising in pre-season needs to gain a level of European experience with regular football, so that he learns the mental attributes required to play at a higher level so that he has a more mature and experienced understanding of how to use his talent at a much higher level. It gives him a middle step in his development which is really useful as otherwise he will be part of our squad, but not play regularly, and thus be asked to make huge leaps each time he played for us, and thus run the risk of Savic or Rodwell-esque errors that would then get fans on his back and start to be detrimental to him.
In terms of Lampard, he may only play a handful of times when we need him, but by him signing a contract with us we get to put him as HG player on squad lists, filling a spot and because we can't add another foreigner in that role, and don't have the money through FFPR to buy a Barkley this summer, Lampard is the most value for money transfer we can have, still has the ability and has bags of experience, he's free and therefore adds what we need, HG squad depth.
Huws is nowhere near ready to play for us, and it's alright saying "play them in the Carling Cup" but what if we got knocked out in Round 3? They may only play 1 or 2 games and spend the rest of the time in the EDS, because rest assured the fans would moan a) if they had to come in in a big game and risk making a mistake and b) by the time we get to Round 5 the fans will want us to play our strongest team to ensure we progress and try and win the trophy, so by November the psychology of having Zuculini or Huws in the squad will have changed completely, and so the management are right to not put them in the squad till they believe they are ready to cope with being called in to play regularly. At the moment neither are ready.