overstretch
verb
[ əʊvəˈstrɛtʃ ]
• stretch too much.
• "if you overstretch your Achilles tendon, it can tear"
• make excessive demands on.
• "the extra burden of providing cover for a strike would overstretch personnel at home"
overstretch
noun
• the state of being subject to excessive demands.
• "greater numbers allow naval forces to be more places at once without overstretch"