Starbucks management admits that long wait times contributed to declining sales last quarter.If you've noticed that it takes longer to get your coffee or latte from Starbucks (SBUX -1.97%), you're not alone. This has been leading to increasingly frustrated customers and helped play a part in the company reporting disappointing fiscal second-quarter results that saw sales decline 2% to $8.6 billion. It was its first quarterly revenue decline since 2020 when COVID-19 affected sales.Starbucks' operational issu ...