This is one of those questions you could go on for hours about. The reality is that every stock assessment model is fundamentally different in how it's structured. One of the important pieces at the review process is to pick apart that model and to make sure that it actually makes sense. Do the values for recruitment make sense? Do they match what's seen on the water? Do the patterns for growth match what we're seeing on the water? Do the trends in biomass match what we see on the water?
That is often much more important, that validation process, than what the actual model structure would be. We can have a very simple model that can give very good answers, so we don't need a more complex model. You can also have some very complex models that tend to alias very important things that are going on in the stock such as ignoring recruitment patterns and ignoring strong year-classes that support the fishery.
Really, the challenge is to make sure that, when we review these models, you have the right experts in the room to pull them apart and to tease these pieces out to make sure they're giving a real signal and that you also have the people around who can demonstrate it.