You counter your own point with remarkable speed there mate.
If our only problem is not having a (good) striker, Koeman being a very good tactician should solve that with ease shouldn't it? I mean, we certainly shouldn't find ourselves losing a lot of games just because we lack a genuine goal threat. We might struggle to score many, and therefore win, but a tactical genius could surely work out a way in which we could battle to a few 1-0 wins and if not then shut up shop and keep getting points with 0-0 or 1-1s. Our 'very good tactician', however, has managed to oversee 3 and 4 goal hammerings.
It's also odd for a very good tactician to fail to gain a single away PL win in 10 months and counting. We undoubtedly have better players than Brighton - even up front - so if our tactics are so good, why can't we beat them?
I honestly believe any idiot could have improved us last season. Martinez was sacked for a reason, because it was obvious that he wasn't doing well enough with what was available to him. Taking us 4 places higher in the league gets him a bit of credit, but is absolutely not a reason to hail him as an excellent manager. We can also expand on that to say that Martinez at least took us to 5th in his season before things went south, it is looking increasingly as if the dizzy heights of 7th will be the high point of Koeman's tenure. Knight him, I say.