BCS lays out the backstory of how everyone got to where they are. Saul's character is more easily understood. Saul, as Jimmy, got rich with one big score in the form of a class action suit settlement, so he's doing what he loves to do, not out of financial necessity, but because he loves the game he set up, though he's trapped in it as well.
We see Saul as a sleazy bus bench/ TV advertising lawyer who games the legal system for his mostly sleazy clients. That allows him to keep playing the game he invented for himself: a criminal attorney, with an emphasis on "criminal". He's complicit in the crimes of his major clients, advising them and providing contacts who help them further their criminal careers, and taking a cut of the proceeds of their crimes.
Without the backstory, Saul just looks like a hand-to-mouth crook, when he's actually a rich man in his own right, living his own dream and liking the thrill. I really needed to watch BB to see what Saul was becoming and why. Watch both series to get the whole picture, especially the journey of Gustavo Fring and Michael.
We see Saul as a sleazy bus bench/ TV advertising lawyer who games the legal system for his mostly sleazy clients. That allows him to keep playing the game he invented for himself: a criminal attorney, with an emphasis on "criminal". He's complicit in the crimes of his major clients, advising them and providing contacts who help them further their criminal careers, and taking a cut of the proceeds of their crimes.
Without the backstory, Saul just looks like a hand-to-mouth crook, when he's actually a rich man in his own right, living his own dream and liking the thrill. I really needed to watch BB to see what Saul was becoming and why. Watch both series to get the whole picture, especially the journey of Gustavo Fring and Michael.