Fernando Tatis Jr. is in a place of flux. There is progress. There is also more patience required for a 23-year-old who has acknowledged that is not a strong suit. Padres President of Baseball Operations A.J. Preller said last week the evaluation of Tatis had evolved form “month to month” to “week to week.” In a way, it is day to day. “Sort of,” Tatis said Wednesday morning. “That’s where we are this week. There’s a lot of tests we’re trying and let’s see how it goes.” He tries something new, sees how it feels and reports to the medical staff. “Too many opinions,” he said the other day, bowing…