The pending call-up of Nick Franklin, the Mariners’ IOW (infielder/ outfielder/what- ever), comes at an intriguing juncture in the season. It can be said that a third of the starting lineup from Opening Day isn’t functioning. Yet if the Mariners (21-22) can snag a couple this week in Texas from the injury-blistered Rangers (21-23), they will remain a .500 team despite a slugging percentage from Robinson Cano that trails former Yankees teammate Ichiro (.424 to .406). Remarkable.