Mumpfield's crisp route-running and athleticism impressed coaches despite low target volume.

Mumpfield, a Round 7 pick, impressed coaches from the beginning of preseason in his first training camp and carried that through the season. He played in all 20 games with 436 offensive reps and 73 special teams snaps. The source praises his crisp route-running, showing understanding of angles, alternating tempo, and feel for space. His athletic testing shows excellent burst, short area agility, change of direction, and lower body explosiveness. However, he was not targeted much (23 regular season, 6 playoffs) and had a catch percentage under 50%.