Toews, for whatever reason(s) has squandered the remainder of his prime. 1st 9 years his takeaway to giveaways was 2.5. Since 2016 it's 1.3. His shooting % has fallen off a cliff.
When one of the dynamic duo falls off that significantly along with other core members aging-Seabs, Crow, Keith, Hossa those are HUUUUGE holes to fill in a salary cap world. Time will tell if Tampa is better at navigating the future because this is what awaits them down the road.
Everyone who is/has been at the top wants to hang on and stay there, that desire clouds many decisions, it's the normal course unfortunately.