The losing streak sucks, but you don't let a young possible up-and-comer head coach go immediately after one slip-up when there was so much promise early on. Tua's concussions didn't help. I bet the team's ownership sees an opening to try to lure Brady and Payton to Miami.
Everything I've seen from Howell and McDaniel in terms of personality seems like they could work well together. This is also assuming Howell isn't bad.
If not McDaniel, the team needs to look for someone who's more offensive-minded than defensive.