Roman Reigns needs a fifth member for The OG Bloodline for WarGames and he only has a week to find someone who can work cohesively with the team he already has, but also someone who has a good history against Bronson Reed. Seth Rollins was the man to most recently pin Reed in Saudi Arabia, but since he has refused to join his former Shield teammate, this could force Reigns to widen the net.
Sheamus is one man who knows how to handle Bronson Reed since he defeated him back in July on WWE RAW.
This could be enough to qualify him for the open spot at WarGames and The OG Bloodline could help handle his issues with Ludwig Kaiser.
Sheamus is a babyface at present, so he could be the perfect option for Roman Reigns, while Sami Zayn is also someone who has pinned Bronson Reed in the past. So, both Sheamus and Zayn being on the same team could be enough to finally overcome Reed and Jacob Fatu.
The team has shown that they could be a dominant addition to the brand in the future. But, with the amount of time that Reigns has until Survivor Series, he could be forced to reach desperate levels.
Reigns has four members of The OG Bloodline at the moment and there are question marks over if he can trust Sami Zayn since he and Solo Sikoa seemed to be on the same side briefly. It will be interesting to see how the team adapts to an outsider whether it's Sheamus or Seth Rollins who joins them as their fifth man.
The best way WWE could do this is to wait until Survivor Series and unveil the final man on the night, the same way Randy Orton returned last year, but without being announced ahead of time.