I expect the 'youngsters' referred to are the high ratio of 19, 20, 21 yrs olds in the current team, including the loan players. With 3 most recent speculative signings by the Owner when experience was called for.
I seem to recall that the previous Manager requested 23+ aged players for the National League at the start of the season, realising the experience and strength of other teams from last season. A request that seemingly fell on hearing impaired ears.
Possibly, why King's Lynn are where they are.!!