Graham Turner has told Monday's Liaison meeting that four of the trialists vying for contracts at Edgar Street have been told their futures lie elsewhere.
The four, believed to include Sam Alsopp and Steve May, have been released after playing in Saturday's 2-2 draw with Birmingham City.
A fifth, winger Davion Hamilton from AFC Telford, has been asked back for further sessions - but AFC Telford boss Rob Smith may not be too happy with the wide man after Hamilton apparently left the Bucks in the lurch by failing to appear at pre-season training, missing several training sessions without informing Smith according to the Shropshire Star.
Turner also told the meeting that he hoped that two more signings would be completed within a week, but refused to be drawn on the names of those players, adding that the squad could still be as large as 22 once the season started.
The Meadow End would again not be open for the Westfields match, and it was doubtful for Saturday after a drain collapsed by one of the toilet blocks which would need to be repaired before the terrace could be used.
Season Ticket sales were reported to be steady, Ground Advertising was almost full, and there was a waiting list of sponsors for new players. Saturday's match with Bristol City would also cost the same as the two friendlies so far.
The club were also awaiting Football League confirmation that three home matches would have 12 noon kick-offs on Police advice.