I've said this for years. Our depth is one of our biggest hindrances as players (and coaches TBH) tend not to be supported through a temporary drop in form; or have a hell of a road back into the squad if they drop out with an injury.
It's one of (but far from the only) the reasons I want a smaller league, allowing the cream to float to the top; meaning higher quality matches at club level, with higher quality players around them, more club combinations likely at international level, and fewer, but higher quality "next cab off the rank" options.
Our pyramidal structure for talent isn't remotely pyramidal; it a blunt pillar!