Biggest regret this season?

I think this question is applicable to any team with any record. For the losers out there, it could be the initial draft? Maybe bad waiver wire acquisitions burning up valuable faab. Maybe some bad trades? Not bidding enough? I think we all look back on some decisions we’ve made and wish we should have known better.

What is your biggest regret this fantasy season? Mine is burning up my faab way too early on players such as Tank Dell and Kendrick Bourne.