All-rounder Graham Napier admits Essex need to improve their batting.
The Eagles lost their third straight CB40 match on Tuesday after being bowled out for just 112 in a five-wicket defeat against the Netherlands.
Napier told BBC Essex: "We haven't scored enough runs at times and it is something we need to work on. We've got to go back home and reset our targets."
Only three Essex batsman reached double figures in Rotterdam as Essex collapsed to 0-2 and 66-6.
Tom Westley top scored with 32 and a stand of 45 for the seventh wicket between Napier (28) and Tim Phillips (17) provided temporary respite.
However, the Netherlands knocked off the victory target with 14 overs to spare.
The result means Essex stay joint bottom of the Group A table, while the Netherlands have now won four out of five matches and are four points clear at the top.
Essex have not won in any form of cricket since the first week of April, when they defeated Gloucestershire in the County Championship.