Global retail pharmacy and drugstore operator Walgreens Boots Alliance (NASDAQ: WBA ) shares have plummeted to levels not seen in 28 years. Its aggressive merger and acquisition (M&A) and investment activity backfired hard when macroeconomic headwinds intensified and crushed front-store sales. The once-thriving giant has implemented emergency restructuring plans led by CEO Tim Wentworth. The company identified 1,200 stores, or 14% of its total stores, to shudder in the next three years, including 500 in 2025. This will be immediately accretive to earnings.