As points of reference, I offer the career bWAR of secondbasemen Dustin Pedroia, Chase Utley, Robinson Cano and Ian Kinsler:
32-year-old Dustin Pedroia, 49.4 bWAR in 11 seasons, two World Series, two World Series titles, one AL RoY, one AL MVP
37-year-old Chase Utley, 63.4 bWAR in 14 seasons, two World Series, one World Series title
33-year-old Robinson Cano, 60.3 bWAR in 12 seasons, one World Series, one World Series title
34-year-old Ian Kinsler, 51.5 bWAR in 11 seasons, two World Series, no World Series titles