In Week 18 of the fantasy baseball season, tough decisions loom over roster management as players like Shane McClanahan and Mookie Betts grapple with performance issues. McClanahan's bicep soreness has led to a decline in ownership as his rehab progress stalls, making him a candidate for trade rather than waiver. Betts, meanwhile, has not lived up to first-round expectations, and despite a glimmer of hope for positive regression, it's suggested that traders capitalize on his name value before it's too late. Other names discussed include Teoscar Hernández and Marcelo Ozuna, advocating for patience with the former and continued reliance on the latter despite their inconsistencies.