Hi me78
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The Delphi Method helps people remain focused on the topic that is currently under discussion (and therefore it also helps people avoid "getting sidetracked" and discussing things that are irrelevant, unimportant, etc.).
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Here are two dictionary links for you:
at hand: http://www.m-w.com/cgi-bin/dictionar...ary&va=at+hand
sidetracked: http://dictionary.reference.com/sear...detracked&r=66