Where an employer’s shifting explanations of the time frame and rationale for an employee’s firing could lead a reasonable fact-finder to infer retaliation, summary judgment for the employer was inappropriate.The 7th U.S. Circuit Court of Appeals reversed a decision by U.S. District Judge Charles P. Kocoras.In 2010, Kelley Donley began working as the corporate accounts director for Stryker Sales Corp., a medical-equipment manufacturer and retailer. Donley repeatedly failed to submit expense reports and was …