However, you are in luck, its a slow day at work and I will give you my thoughts on SISU since you asked so nicely and seemingly are interested in what this faceless internet user under the pseudonym of an American cartoon character thinks of SISU.
To start off, truth is none of us know. We can all make guesses and assumptions on what the plan is, what the end game is but with all the facts I have at my disposal and the actions all parties of taken and if I HAD to make a guess this is what I think.
Quite simply, it seems as though SISU are doing all they can from a business perspective to get the Ricoh Arena as cheap as possible. The Northampton move suggest to me, they are very ballsy and believe this will help them succeed in doing so. Why? Well, when they first came into the club and subsequent comments from SISU seem to suggest they saw this like any other investment a hedge fund like there's make. To make money. This has spectacularly backfired due to on field performances, which you can argue SISU have contributed to. It seems as though they didn't really know what they were getting themselves into, sold a fairytale of Premiership riches from Ray Ranson which they stupidly believed would be easier than it turned out to be. Relegation followed and now they are quite simply looking to make the club (or the business surrounding the club) as marketable as possible in order to recoup as much money as possible before sailing into the sunset and forgetting they were ever involved in the complicated business world of football. They have made mistakes and they are now playing hardball to quite simply get the stadium on the cheap and sell us as a package. Its no secret that the club is much more saleable with the Ricoh Arena.
To summarise, get the Ricoh on the cheap by any means necessary regardless of the detrimental effect it has on the team and fans before selling it as a package and running away from football back to investments they know how to handle.
This is only an opinion and one that could well be spectacularly wrong. Unlike others I'm not going to claim I know what I'm talking about as hedge funds and football business models is not my field/forte/choice of subject for mastermind.