Assertion: pitcher's spot | /r/HasProperty | dedicated to relief pitchers
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text: This has come at the cost of significant investment in terms of salary and roster spots dedicated to relief pitchers, and has in turn created other vulnerabilities: teams are now constricted in their ability to use pinch-hitters and other substitutes, and an ever-growing proportion of total innings pitched fall to the least-effective pitchers on the staff, as both starters and relief aces see their roles become ever-more restricted.