It's the same thing with Arizona last year, The browns the year before that. Why? Maybe to cause doubt in the draft to see if they can trade down and get the same player. Havent you watched draft day with Kevin Costner? lol
I really don't like the rebuild term. It comes across to me as a ready made excuse and you're never really starting from zero.
If you think about the time period it takes to build a team its usually only about 7 or 8 years anyway. You can't just take 3 or 4 years "off" while you're restocking, it should always be a continual process.