The 25-year-old reportedly wants a new deal as he enters the final year of his rookie contract after back-to-back seasons of recording double-digit sacks for the Chiefs.
"I don't know that," Reid told 810 WHB. "I expect them all to be here and then whoever is here, we're going to coach them. If they don't show up, I understand the profession.
"I've been around it a long time and I just move on. That's how it works. You coach who you have, and you coach them like crazy."
Houston recorded 44 tackles and 11 sacks for the Chiefs in the 2013 season.