so the sack of Yunkai in the books is all Dany’s plan. She gets Mero drunk, and the whole “surprise them at night” deal was 100% her idea. (She wasn’t expecting to get the Stormcrows; that was an added bonus that I’m sure helped, but I think she probably would have won the city anyway without Daario’s help.)
the sack of Yunkai on the show last night was alllll Daario Naharis. Daario’s sneaky plan, Daario bringing back the harpy flag, Daario’s glory.
When it should be one of Dany's first military victories, Dany displaying her cleverness, Dany proving her worth to the Yunkai'i and her own army on her own.