The criterias are as different as the nations.
So I can only give the example of germany which should been a warning to all the players out there. Also this is reported from a self perspective. For anywone who dont wann ahear my story of sorrow and heroism... just skip it.
2003 Amsterdam/Netherlands
The good old times, the first Eurobowl. The beginning of the european tournament scene. When I checked online if Blood Bowl is still played I only saw the orcidas boot from the NAF side for a while. The Eurobowl was the tournament I wanted to play in. So I grabed my brother, contacted Tim and also registered to the MMM03 Tourney to see how this all works.
The Team was in the end different as there where 10 persons for 8 places. So I dropped out to start as an Freebooter and Anke and Stephen shared a team.
2004 Germany
As the Eurobowl was held in germany several players wanted to be the part of the team. So the decision was to ask each member if he wanted to play again. As germany was last years vice champion the team was sure to have a good setup and each player stayed on his position. Again 10 players for 8 places and I had too make a Freebooter again. But uproar began in germany which was held down for this time as the game was still began to grow.
And after day one I was the best spanish player I also beginn to really like this style of life.
The team stayed as everyone was sure that the title was a fingertip away. Germany was again vice champion in the end. As they lacked a point in the final rankings. Well if I had let Anke win this could have ended a different way.
2005 Shrewsbury / England - the year of sorrow.
As some parts of the team already decided for themselfs that some other players should now step up, and the german community roared to make qualifikation tournaments the old team broke apart. The discussion where endless, and brought no end, as there where no real leader of the discussion, and even if there would have been one he may not have been accepted.
In the end quali tourneys where played in germany. One in Berlin hosted by Olaf, the German Open 05 and the Mogontia Masters in Mainz.
Each of the first 3 Players should form the team. The last two should been then decided. The tourneys went well but a lot of the players who qualified, some of them from the former team decided not to play. Also other qualified players droped out due to animosity between key players.
Again a leader or captain was lacking. 4 weeks before the game Marc Hohmann aka Planlos took over. He formed of the surviving players a squad. Unqalified players where took in and two Freebooters hired from italy.
The cost of the trip where as for this much higher than an earlier decission. Germany finished on place 5 or 6 with a huge gap to italy and spain the top teams. The two italian Freebooters where the two best players of germany. Even I was asked if I would like to play for germany. But my contracts stood at this moment.
2006 A new hope
After the 05 debacle I had the idea to make it a team captain decide tourney. One captain chooses a team, another one also 7 players. 5 games, after that the winning captain is the national captain for this year and can choose his final squad from all players, also from the players of the loosing team.
This idea was quite liked, but there is no contestant team captain. The mood is that most people want a firm captain for this year who chooses his team mates. He has then the absolute power above everything. And at most there are 2 or 3 candidates for this position. 2 of them already from the first two EBs. So if someone is complaining that only well known coaches can come into this squad and this is some kind of Blood Bowl lobby, then he is damn right! If you look at the other teams than every national team consist of the guys who travel the continent and even some to the new world to play Blood Bowl. And most times these guys have the spirit and the skill of this game.
So my advice is this. Decide a Captain, and choose someone who others will follow. He will have then the right, privilege and pain to choose a team. He has to choose his team wise and without any freindship ties. He is only the first servant of the nation.
Well this is more or less the idea of a roman dictator who gives the power back after the crisis and most of us know where such things lead to. Usually to an galactic empire and light saber duells in the throne room.