Thanks all for the feedback!
So, didn't play Dwarves or Chaos the last days, only Dark Elves.
Lost 2 players: Blitzer 2 was thrown to death by a stone from the crowd and Line-Orc 1 was stabbed to death by the evil Elves!

Both have been replaced by Rookies. The team now looks like below.
Taking feedback into consideration I'm going for the green skills in the future.
4419 Black Orc 1 - Block, Guard, Mighty Blow, Dauntless,
Stand Firm
4429 Black Orc 2 - Block, Guard, Stand Firm, Juggernaut,
Mighty Blow
4429 Black Orc 3 - Block, Guard, Stand Firm, Grab,
Mighty Blow
4429 Black Orc 4 - Block, Guard, Side Step,
Mighty Blow
4519 Troll - Guard
6339 Blitzer 1 - no skills yet
+ Mighty Blow, Piling On
6339 Blitzer 2 - no skills yet
+ Mighty Blow, Guard
6339 Blitzer 3 - Guard, Mighty Blow,
Tackle
6349 Blitzer 4 - Guard, AG+1, Sure Hands, Dodge
5338 Thrower 1 - Block,
Accurate, Kick-Off Return
5338 Thrower 2 - no skills yet
+ Kick & more defense skills
5339 Line-Orc 1 - no skills yet +
Dirty Player, Block
5339 Line-Orc 2 - no skills yet +
Block, Tackle
In hindsight, the comment on Wrestle is correct and I'm not going to take that anymore with Orcs. It's sometimes useful if you really need to take out an opponent but that usually works without Wrestle anyway and you keep your movement.
I also agree on the fact that Mighty Blow is generally a better 3rd skill (with Stand Firm) on BoB's but I wanted to do something 'refreshing' for a change, hence the Juggernaut, Grab & Dauntless. I can 'defend' my choices though: Grab to dismantle the opposing cage and put more distance between my cage and the opponent, Dauntless to take out Big Guys or STR4 pieces with a STR increase surrounded by Guards (especially when the Troll goes stupid) and Juggernaut for a very short Blitz to take out an opposing lynchpin and replace it by my own to reform/move Da Kage. But Mighty Blow is probably more useful per game, true.
Perhaps I will try a little sneaky gobbo too.
Suggestions on Blitzer 4? He's nearing another skill-up and I'm unsure what to get him: Fend seems a bit un-Orcy. Strip Ball looks good. Tackle?
The coaching skills might also be true. I'm still learning every game.
Although I don't feel 'outplayed' often it seems to be mainly games when the Dwarves and Chaos players get more players of my team of the pitch than the other way around. That's probably because of my lack of Mighty Blow, although my luck could improve too (see the Throw a Rock incident). Another BIG issue contributing to this problem is that it is not uncommon to face Chaos teams with 5+ players with Claw (and Mighty Blow). It is difficult to get them all of the pitch or staw away from them. And when they start to injure my players, it's like a domino effect...and more and more players get injured.
Well, I'll keep you updated.
Lord FlashHeart