Deerfield, Ill.-based Baxter International has tapped John Rogers, the former finance chief of Smith+Nephew, to become its next chief financial officer. The appointment, disclosed in securities filings this week, comes with an unusual condition. Rogers’ start date of Oct. 1 hinges on securing the proper U.S. visa and work permits. The offer letter, filed with the SEC on Aug. 19, spells out the details. Baxter will assist with immigration process…