Giles-Harris isn't on this roster to rack up tackles on defense -- he's here because his special-teams grade (90.8 PFF, fifth-best in the league among regular contributors) is genuinely elite. Cincinnati's decision to elevate him for the Tampa Bay game and keep him around reflects how much value a coverage-unit standout like him provides even on a cap-friendly one-year deal.
Strengths: Elite special-teams production, posting the NFL's fifth-highest PFF special-teams grade (90.8) among qualified players.
Weaknesses: Limited defensive role so far and his roster security depends almost entirely on continuing that special-teams standard.