Mostert for Waller

Hey everyone, I’m struggling @ TE with Higbee and now Shultz probably losing targets. I currently have A. Jones, Robinson, Taylor, Harris and Mostert @ RB, so I can afford to trade one for a quality TE I can trust. I have an offer of his Waller for my Mostert. Should I do it?! Not crazy about Taylor’s production lately, so Mostert has been a solid RB2/flex option. Any advice would be helpful. Thanks, Dan