When a collection is made when a group is still on the top (or just over it), the lack of　perspective is often obvious. But in this case, the reason for the inadequate choices is more likely to be commercial or legal. Because when Decca releases a Thin Lizzy collection, there are only three albums to choose from. And the first, Thin Lizzy, holds few enjoyable songs. So no songs from there, which is good for the quality of the record, but bad from a chronological aspect. And it only leaves the compiler with two records: Shades of a Blue Orphanage and Vagabonds of the Western World.