My blue packs are up around 100. Once they were near 130, but then they started dropping and reached around 90. Obviously, the number of games you watch and win effects how many you have (I've haven't been able to watch as many as I have in the past and my teams are a little less successful today than they were a few months ago). But I only use the blue packs when the morale bar turns orange. I leave it alone when it dark and light green. Then I use 2 to max it out. I only apply them to my starters. This strategy seems to be working for me.