I dont remember well enough on the other 3, other than I'm sure I remember Valeron playing in a two against us several times as Diego Tristan was always partnered up front.
But even today Alebelda is playing box to box. He shouldnt be because Valencia really need someone sitting on the edge of their own box, looking after their circus of a backline, but for some reason you'll still see Albelda getting to the edge of the opponents box and shooting - though never actually scoring. He covered Baraja's runs forward because Albelda is a great team player. Baraja's style should be compared to Ballack's - Ballack played deep for Leverkusen too and popped up late in the box to score often. Neither Ballack or Baraja have ever been very good defensively though. They've always needed someone next to them doing a lot of defensive work. Aimar was a south american attacking midfielder. From what I remember they'd play him anywhere they could fit him in, but in most matches playing him as a 2 in midfield would have been asking for trouble defensively.
