i was looking at Kansas City Chiefs transactions and i noticed they sent 4 contract offers to 4 coaches for OC

those 4 are

1st = https://maddox.myfootballnow.com/coach/149 Rejected contract offer from Kansas City ($6,000,000, 3 yrs)
2nd = https://maddox.myfootballnow.com/coach/200 Rejected contract offer from Kansas City ($12,000,000, 6 yrs)
3rd = https://maddox.myfootballnow.com/coach/225 Signed contract with Kansas City ($7,500,000, 3 yrs)
4th = https://maddox.myfootballnow.com/coach/501 Rejected contract offer from Kansas City ($12,000,000, 6 yrs)

btw all four occured on 2019 Free Agency 4 of 5 stage

here is that team = https://maddox.myfootballnow.com/team/4

they only had 1 spot open for a coach so how could they sent 4 contract offers to 4 different coaches for that job??

This isn't a problem or a bug. Teams are able to send offers to as many candidates as deemed necessary hoping that 1 will sign. It is like casting a net. And as you can notice, the offers were different amounts.

The real problem would have been if the offers were all the same and all accepted. Then, I am guessing, that there would be multiple, quick hirings and firings as each would sign and then be let go as the next signed in order of offer sent.

i think it is problem/bug in that a human person can only send 1 contract offer so either KC was able to find a way to send offers to the other 3 coaches or the computer did that.

i think only time the computer should sign coaches if the team isnt owned by a person or when maybe the 1st game either be preseason 1 or regular season 1 where a team needs the coaching staff to be full.

This likely isn't a bug. I'm guessing 4 coaches were being hired for four different positions. You can't actually tell what position each was offered. Only what position the eventually accepted.