The waiver wire is not a junk drawer
The waiver wire is not where dead rosters go to be buried. It is where you look for role changes before the rest of your league notices.
Prioritize players gaining routes, touches, red-zone work, or a starting job. Do not burn half your FAAB on a box-score spike with no role behind it. The best add is usually the player whose opportunity changed—not necessarily the player who scored twice on Sunday.
Keep a watch list, track depth-chart movement, and save enough budget to act when the real injury or usage change hits.