Youth Squad and Players
You can acquire a new player each week by moving a junior player up into the senior squad. The better the youth squad activities are, the better the chances of the junior player succeeding. You don't have any choice in what kind of junior player you'll get, apart from choosing between a goalkeeper or an outfield player. Don't count on receiving top-notch players each week. Most junior players you try out won't qualify for the team. If you have one or two of them moving directly up into the team you should be satisfied - think about how things work in reality!
Most clubs put a lot of money into their youth squad, but there are also those who spend less money or none at all, buying reinforcements from the transfer lists instead. However, if you do decide to build up your junior player structure, be prepared that it might take some time before your investment pays off with reasonably able juniors. You may find there's little point in moving juniors up if your youth squad status is "poor", for instance.
Every week you're allowed to make a large (20 000 €), medium (10 000 €), or small (5 000 €) investment in your junior squad. Many small investments are more efficient than a few large ones. In other words, it's wise to make long-term plans - if you're willing to invest a lot of future funds into increasing junior player activities, large investments can be a way to get results quickly. If you want to build up a decent structure gradually, without spending too much money, make a small investment each week. The upkeep of the youth squad won't automatically cost you anything, but if you don't make sure of regular funding, the structure will deteriorate quite rapidly. Once the level of the youth squad has dropped, it will take a long time to raise it again. The amount of time required for improvements is discussed in the page on youth squad improvements.
You're only able to promote one junior player per week. If you don't change the amount, the amount invested the previous week will be drawn.
It'll cost the club 2 000 € to move a junior up.
Information on your youth squad activities can be found in the "Your club" menu, under "The Club" caption. This is also where you enter the amount of money you want invested into the youth squad, and where you move them up from, each week.
A theory is that the distribution of each skill of a youth pull is an exponential (or a Poisson, if we prefer to remain into discrete distributions), with the level of the youth setup influencing the parameter of the exponential distribution.
Another theory is to pull Goalkeepers whilst your youth squad is lower than solid. The reason behind this is that only one skill is ever relevant, rather than all seven. A passable keeper will usually sell, whilst a outfielder with passable stamina, and 6 poor skills will not.
Plumbers and Golfers
Shockingly, even excellent youth squads may produce, week by week, suprisingly pathetic youth pulls. Many managers complain about their youth squad investment, decrying the level of players they pull as a waste of money, time, effort, and hopes. Even most inadequate youth pulls (17 year old goalkeepers or multi skilled players are an exception) are usually sent directly to the golf course or the local pub to spend the rest of their adult lives as misrable losers. The luckier ones end up chasing young blondes around said pub.
However, not all of Hattrick's drop-outs turn to become lazy bums. Many disastrous players have foreseen the future failure and prepared an altenative job. These players TSI sum usually does not mount much above 40, and most (And not very rarely all) of their skills hits "wretched" at most. These players are called by the HT-players by their possible alternative jobs - Plumbers, Carpenters, Politicians and so forth...