Here is a learning experience for Adam Gase,
With 12 minutes left in the 3rd period, Tannehill threw a pass over the middle to Parker. Parker grabs it from behind and as he pulls it to his chest, Titans Jason McCurdy tries to grab it from him. Both Parker and Jason McCurdy have their hands on the ball as McCurdy goes to the ground. Since Parker's hands never left the ball as soon as McCurdy hit the ground with his back side the play was dead with co-possession in effect. Whenever there is co-possession in effect the ball belongs to the last team in possession unless the ball becomes dead on 4th down prior to the yard to gain (short of the yard needed to gain a first down).
Gase should have thrown his red flag to have that play reviewed and it would have been overturned.
If you look at the highlights link below, fast forward to 3:13 in the video to see the play and the corresponding replay.
Better luck next time.
Dolfan since 12/25/1971