|Think about Loose Coupling|
1) Hmm, i think the perl was long ago compiled from source by someone who wasn't in the know. After that someone modified it in some strange ways, and it became a mess.
Now noone knows what's going on with it and if they want to make it clean by company standard they need to upgrade to solaris 8 : that's because Solaris 6 is being discontinued here so if you need to change something with the OS team it will have to be solaris 8 .
All this is mainly extrapollation from what i understand since it could also very well be political obfu or management war or whatever.
Also the dev server and the prod server are in different OS version ... Well , it just ain't nice .
I'll tell you more when i hear what they have to say 'Live' !
2) I have a feeling no one is really in charge of this ... Well there is a team in charge of things like version shipements, but for some reasons they also/mainly do mainframe things ?! I think their "one binary only" solution will not really solve problems because i haven't (yet ?) heard of a module management strategy. If everyone installs their own modules where they want it's bound to go chaotic !
3) As always it's a money thing. Also the code is quite old and seems awfull in some parts, so some ppl fear the results. On a "company scale" there's also a problem with the hudge number of servers and apps . For our own little app i guess we can go with two binary (if allowed), and/or a testing process ...