Bobby was a Genius!!

All you have to do is read the songwriting credits to everything. It's true that Gaudio is associated with most of their Top 40 hits, but most of those songs were co-written with Crewe. Somewhere around 1968, egos had taken over in the studio, and Gaudio decided he no longer needed Crewe, which resulted in a six year dry spell of no hits and poorly-received albums. They worked together sporadically after that, but ever since then, he and Valli have often downplayed the importance of Crewe's role in the sound and success of the group. Not to mention, they've never once publically acknowledged the roles of Charlie Calello and Nick Massi as arrangers. Massi was the one who arranged the group's harmonies on those early hits. Instead, far too much has been made of Gaudio, and because of very little to no public aknowledgement of other writers and producers, most key players in the story have been largely ignored and designed to seem like Gaudio was the only brain behind the Seasons. Another thing to note, is that unlike bands like The Beatles and The Stones where the roles of each member are universally known and understood, the Seasons were never a universally documented act, so most of the public has no idea of the names of the members let alone song credits. This has worked well in Gaudio's favor.