Piper is supported mainly by spares sales and the occassional PA46 sale.
The company doesn't have a future. The PA28 etc fleet has perhaps another 20 years to run, during which it will decline continually. The PA46 is very dated and hangs in there only because nobody has gone for that niche. The Meridian has competition from the Jetprop but most JP conversions are done on used Malibu airframes. The Piperjet is way way behind everybody else, into a market which is much smaller than most expected a few years ago.
In a company like that it will be extremely hard to retain any talent - especially in the USA. It's a bit like Honeywell (GA dept) - hardly anybody left in there with any get up and go.
As a Czech myself, it would not suprise me if the Czech company was playing funny games too. The Czechs are very good at that - the ex communists make the trickiest capitalists because they think all bets are off when it comes to acceptable corporate behaviour. Didn't they have an American owner?