User blog comment:Don25/For all who were and / or are still fans of Duncan./@comment-24784093-20171207141230/@comment-4726418-20171207203046

Tyler had a huge expansion to him from TDI to WT, DJ was one of the main characters of the first half of World Tour (which most agree was done pretty poorly), and Noah had an entire storyline to him in RR which had egregiously mixed feedback. Bridgette & Eva I get but it's not like Duncan's to blame for that. Bridgette especially hasn't been used to a full degree because the "fish out of water, girl next door" trope has already been done with Gwen, Beth, Zoey, Samey, Carrie, and both of the Sisters. A role that she'd be inclined to have is one that has been done in several other cases and that's why she hasn't been given much opportunity.

The point is that they have done the idea of 'let's give other people a chance' before. One big thing about TDA was expanding on the lesser cast members of TDI such as Harold, Justin, and Beth, while simultaneously getting rid of the bigger people of TDI before the merge such as Trent, Gwen, Izzy, Bridgette, and Geoff. Ezekiel got an entire new storyline of becoming a feral monster everyone fears despite just being an irrelevant first boot before (even if the feedback wasn't that positive). Cody of all people was chosen to get as far as the very last episode of World Tour. Sam was brought back to TDAS as a last-minute replacement to Brick despite being less prominent. Geoff was a 6th placer who was relegated to an aftermath host two seasons after, but then lasted all the way to the finale in RR. And as mentioned, Noah had his messy romance storyline in RR.

Duncan, along with Heather, Gwen, Courtney, and Owen, are always gonna be central parts of the show until it ends. But that doesn't mean they'll just neglect people who've been shown less. They have actually done that on several occasions to cast members. I think another thing people forget is that, if you don't count All-Stars, the original cast have only ever had three seasons together. Since that you had a completely new cast done twice, and a spin-off. So I don't get why characters like Duncan or Owen or Courtney get the brunt of blame for this problem that's really not that big of a problem.