I can tell you that strats=quants in most cases, but some strats, fx fundamental strats and sales strats, are not very quantitative and work more with the sales team. The quantitative strats can be divided into strats and core strats - strats sit on a desk, fx credit trading, and assists the traders, whereas core strats assists the strats with modelbuilding - core strats are the most computational. Which team is he joining? And is it in london or NY?