I think a general tendency for some of the clubs have been heavily undervaluing the players. This has led to the situation we're in now, where a few clubs compete for a couple of top players, but will have to pay some rather ridiculous prices for them, whereas the teams who bid high early on had to pay less for what some would consider better players. This could both be seen as a problem with the economy: Base prices should perhaps have been higher to better reflect on the value of the players, but I'm more inclined to blame it on the managers not being familiar with the format yet, leading to some managers not bidding as much as they perhaps should have (or perhaps some of them just look further into the future and think about their economical situation for the seasons to come).
I want to ensure I give managers a chance to pick as many top 6-7 tier players as possible. In the 5 rounds so far, only 5 players in the top 7 tiers have not been signed by a club(and they may still be picked in round 7). I don't see managers having to pay more in the later rounds as a problem with the economy. In a traditional market, if you are late and scrambling to complete your team, you pay over the odds. Higher base prices will force managers to buy lower tier players, which leads to an imbalanced Group A. It also leads to a lot of good players being forced to play in Group B, due to the economy.
If someone, ends up overspending in the later rounds, it is because they haven't done well. If you look at some of the teams, they have great balance and are strong contenders for the title already in my opinion. I think most managers will agree that the amount of money available and the pricing was a good balance, and allowed them to pursue the players they really wanted.
As far as familiarity with the format goes, managers have to adapt. I think a sample auction gave them a taste for what was to come. The staggered rounds ensured that even a bad round or two, is something they can recover from. There is no excuse for misplaying round 2 onwards in the auction, as everyone got see how the process worked and could learn from it.