A-Yeon
I suggested time ago to make an engineers academy (same as the drivers academy) where you can train the engineers and improve them too
That's a nice idea actually. Strengths and Weaknesses should be completely random, and new Chief Designers from the Engineer Academy, starting at Level 4.
Only thing is the cost per try for a Chief Designer.
There are 56 possible combinations for a CD, 12 of which are useful (imo) Taking into account that it currently costs 9 Tokens to change CDs (every 2 levels or so), it would have to cost 15 Tokens per try (to roughly match the 'Transfers' marketplace cost.
But at least I won't have to keep refreshing the page, hoping a good CD will come. They never come! xD