Credit given away freely comes back as trust.

Handing credit to the people who earned it costs you nothing that was really yours and changes how everybody around you behaves. People who know their work will be named are willing to do their best work in front of you. People who suspect it will be absorbed hold back. The generous version also makes you easier to believe when you do claim something.

Name a specific person the next time you report on something that went well, and say exactly what they contributed. Do it in front of whoever decides things. Watch what happens to how people deal with you afterwards.