#1 They've had prior experience
'The Olympian' and 'The Glorious one' have prior experience when it comes to tag teams, and also, winning the tag team gold.
Gable has been in the famous tag-team called the American Alpha alongside Jason Jordan. They were very famous in the NXT brand, and they won the Tag Team Championship once, and were a very prominent tag team there. In 2016, they got drafted to the SD Live roster, and they won the Smackdown Tag Team Championship.
Roode has also got his prominence in this field in TNA alongside Austin Aries and James Storm. He has won it six times altogether, five times alongside Storm and one time with Aries. He has also won the NWA Tag Team Championship twice alongside Eric Young.
If they combine both their tag team experience, and they fight for the championship, they can give a tough competition to the current champions.