How many years did keeping Allen and signing Carr set back the team?

I’d take DA and Carr over a 14 year old making YouTube content style of a rebuild 100 out of 10 times.
This is a horrible take 100 our of 10 times. Regardless of what some of you want this team is going to have to do a rebuild. DA is not the long term coach and will get fired. We will be a mediocre team until that happens and every year we postpone the rebuild it sets the team back even more.

Everyone like to bring up all that time that tanking/rebuilds are not a guarantee of success, but no one that want's a fresh start has ever said it was. Nothing in the NFL is a guaranteed, but we had info on Allen and Carr, Allen was not a good HC with the Raiders and already had one poor season with the Saints, Carr is 30+ year old QB that has shown glimpse of good play but is not consistent. It boggles the mind that people will roll the dice on something that has never been proven to be good.