I remember when Lazard was contemplating going pro after his junior season.
Butler and Montgomery now contemplating going pro. Unwise decision to enter NFL Draft and be a very late round pick at best or go undrafted. I would come back. Have a monster year.
Alot of wrong to unpack here. First, totally different situations. Lazard was maybe a 6-7th round pick after his junior year, if that. The OP just cited two mocks that show Butler and/or Montgomery going in the first round. I would think, especially for Butler after he grades out at the combine, they would be late second round picks, at worst. So totally different than Lazard's situation.
Also, how did that work for Lazard? He had a very solid senior year and it certainly didn't enhance his draft status. At some point you've put enough tape out there that you are who you are. In terms of a draft standpoint, I think the risk of injury or a bad year far outweighs the off chance you somehow vault yourself from late first to 2nd round to top 15.