When assessing success for Instagram Reels, I would focus on both the quality and quantity of user engagement. This would be evaluated through metrics like views, likes, comments, shares, saves, and the production of new Reels by users. Analyzing these indicators would provide insights into the content's visibility, its connection with the audience, and its effectiveness in encouraging user-generated content. However, if engagement for Instagram Reels is increasing while engagement on the Instagram Feed is decreasing, my first step would be to investigate whether there is a cannibalization effect, where Reels are drawing attention away from the Feed. Next, I would explore cross-promotion strategies, such as featuring Feed posts on Reels or the other way around, to stimulate user engagement on both platforms. Furthermore, I would examine the trending content on Reels to identify any strategies that could be adapted for the Feed to enhance user interest and interaction.