​BUFFALO, N.Y. — ​It's been a rough few days since the Bills 42-36 overtime loss to the Kansas City Chiefs in the AFC Divisional round.

Nearly all of the emotions and discussion center around what transpired over the final 13 seconds of regulation after the Bills took a 36-33 lead.

"I watched it on video and I've watched it over and over in my head a million times and in my stomach a million more," McDermott said. "That's what we do. It's my livelihood and I'm super competitive as well. I want the best for our football team and this organization and our fans, quite honestly. So I'll continue to watch it in my mind and in my gut for years. But when we get to where we're trying to get to, I believe that'll make it that more enjoyable in that moment."

McDermott was simply asked early during his end-of-season media availability, what he would do differently at the end of the game?

"I wish our execution was different," McDermott simply said, repeating his answer from immediately after the game Sunday night. 

The final 13 seconds can be examined in three ways.

The first is Tyler Bass booting the kickoff through the back of the end zone for a touchdown, taking no time off the clock.

McDermott continued to be vague when explaining that decision.

"I'm still not going to get into the specifics on it," McDermott said. "Again, it comes down to execution. We didn't execute."

A follow-up question was whether or not there was miscommunication regarding McDermott's wishes for what to be done. 

"I'm not going to get into the weeds on that," McDermott said. "I'm just going to leave it at the execution piece."

However, McDermott did go on to provide a little more of his thoughts on the kickoff that also apply for how things went defensively on the ensuing two Chiefs plays that led to the game-tying field goal.

"Disappointing, because we pride ourselves in detail," McDermott said. "We pride ourselves in execution and being great in situational football. We practice that tirelessly here. I mean non-stop. You see our practices. You know how detailed we try and be and meticulous with our preparation. So it's disappointing overall to get that result, but it's even more disappointing knowing that we prepare and practice those situations a ton here in Buffalo."

Shifting to the defense in the final 13 seconds, McDermott provided insight regarding his usage of two timeouts, as well as a little into thought process of how exactly to play KC's offense in that situation.

"I let them line up the first play to see formationally, burned the time out, the first one," McDermott explained. "There were some conversations that took place on the sideline. That first play, with number 10 (Tyreek Hill) in particular, he's so fast getting down the field, so you got to be smart with that. Balancing that a little bit with also challenging the yards that they needed for the field goal. Then the second play, let them line up again so I could give us the information we needed, at least by looking at their formation and how they're going to attack us there. Used our second timeout, last time out that we had. Listen, at the end of the day, obviously we didn't get the job done there."

Thirteen seconds has proven to be longer than every realized, whether that's time on a football game clock, time to dissect, or time that will hold pain inside an entire franchise and fanbase for years to come.