why did yo just put 5 in everything else and 100 bleachers. You're not going to win games so that was deffinately cash wasted.
what I'd do is that keep building lower tier seats. a lot of top level teams said if they built their arena again they'd build more LT. thats what i'm doing, leaving the bleachers last.
buy a pg who passes, has 10 Od and is less tyhan 30 yrs old. then buy a sg with 9 od and 11+ js. with about 8 passing. then buy a PF with 12+ IS a 9 id. then buy a c with 11 rb, 11 id nd 9 is. make sure they're less than 15k salary. that'll get you started. but first invest in those Lower tier!
Sorry to be blunt but this isn't good advice.
With any team that has less than ~13,000 seats the only concern when deciding which sections to add is making money. It's worth investing in every section but overall bleachers give the most bang for the buck. What the top level teams are saying only comes into affect when you are nearing the soft cap on attendance of ~20,000 fans which is not even a remote concern right now. Plenty of time to add LT once you get to D3/2.
Next, those skill guidelines are way too specific and not that good besides. Generally players with higher defense are better. Also some of the best value for D5 teams comes in 31 and 32 year olds since they are cheap, won't decline for 3-6 months, and you need to sell most of those 7k salary players once you get to d4 anyways.