So I've recently been appointed as manager of a deli-restaurant. We have (among others) two mature members of staff who both have 30+ years' experience in the catering trade. They both have very valid viewpoints and one of them has worked for the business on and off over a long period of time and has proved herself invaluable. The other is new to the business, but seems to be knowledgeable and have good ideas. My problem is they clash big time. They disagree on just about everything, from displays to preparation, you name it. They slate each other and try to boss each other around. Their hours overlap every day and I'm wondering how best to approach the problem. I don't want to lose either of them, so need to get them on the same page, but it's easier said than done.
Any suggestions gratefully received.