As Boston is ensnared by one of those lingering back-door weather systems, the games at Fenway this week are in serious jeopardy. The Tigers and old friend Victor Martinez are in town tonight for another bizarre two-game series and then the long-awaited re-match with the Cubs starts Friday. Maybe.The clarion calls of Ted Sarandis for a new Fenway with a retractable-roof suddenly seem pretty rational. But that would take away from the 'charm' of freezing your butt off in 30-degree mist in mid-May. I forgot.