Kohl’s on Monday named retail veteran Michael Bender as its permanent CEO, tasking an insider to lead a turnaround after years of sliding sales and shrinking profit amid churn at the top.Bender, appointed interim chief in May after Kohl’s fired former CEO Ashley Buchanan, will have to reverse several quarters of declining sales as the department-store operator struggled with strategic missteps and intense competition from online and off-price retailers.Shares of the company, which have more than doubled sin ...