Following a 10th-placed finish the previous campaign, Colchester's defensive frailties were clear as they shipped 71 goals, the second-highest in the league and ended the season in 17th.
In the Football League Trophy, Colchester progressed to the southern section quarter-final but were eliminated by old Conference rivals Wycombe Wanderers.
Following a campaign of goalkeeping uncertainty where the U's employed six different 'keepers over the course of the season, finding a regular starter between the sticks was key for manager Roy McDonough.
With youth team product Nathan Munson on the books, McDonough brought in John Keeley from Oldham Athletic in the summer.
It took a consortium of local businessmen to raise £10,000 to buy Steve Whitton from Ipswich Town on deadline day to fill the gap.