Complex sentence: Chris Caffery replaced Joe Taylor on lead guitar for some US dates in 2007, and also Oliver Palotai had to be replaced in various tour dates by Italian guitarist Luca Princiotta, because of his multiple commitments with Blaze, Kamelot and Sons of Seasons.
Split into simpler sentences: Chris Caffery replaced Joe Taylor on lead guitar for some US dates in 2007. Also Oliver Palotai had to be replaced in various tour dates by Italian guitarist Luca Princiotta, because of his multiple commitments with Blaze, Kamelot and Sons of Seasons.