#4 The Hart Dynasty - Former WWE Tag Team Champions
Representing the latest generation of the Hart family in WWE, Tyson Kidd and David Hart Smith were a great tag team. Their strong in-ring skills were buoyed by Bret Hart's on-screen support. Known as The Hart Dynasty, Kidd and Smith won the WWE Tag Team Championship soon after WrestleMania 26 in 2010.
However, they were taken apart way too soon and without much reason. Neither star received a singles push, with David Hart Smith getting released in 2011. Tyson Kidd did enjoy success in WWE a few years later. He won the Tag Team Titles with Cesaro in 2015 but was forced to retire a few months later.
If the advancement of medical science enables Kidd to ever wrestle again, he could re-form The Hart Dynasty. Smith has recently returned to the company under his real name, Harry.
#3 Enzo and Big Cass
Enzo Amore and Big Cass were at the forefront of the 'New Era' WWE began pushing in 2016, and rightly so. The trash-talking duo was insanely over with the fans. Enzo would cut loud and charismatic promos, while Cass was the giant behind him.
Unfortunately, though, this popularity did not result in success. Enzo and Cass did not win the Tag Team Titles, eventually splitting in mid-2017. The idea was to make Big Cass a dominant heel on RAW, but the show had plenty such names like Brock Lesnar and Braun Strowman.
It did not work beyond his subsequent feud with Enzo Amore. In fact, the smaller superstar was more successful since the split, winning the Cruiserweight Championship twice. The split was doomed from the start and both men were released within the following year.