Cap Implications of Keeping and Cutting Derek Carr

If 2026 is the full reset year, why do we even need to spend any money in 2025? Why wouldn't we just get a 1 year head start on the reset and have cleaner books in 2027 and beyond? I just don't understand the thinking behind "lets do stuff in 2025" if 2026 is when you theoretically want to full reset anyway.
It gives you 2 years to rebuild your roster instead of sitting on your hands for a year and trying to accomplish everything in 1 year.